Re: [SlimDevices: Audiophiles] Sounds good tonight

2008-07-21 Thread ceejay

I am familiar with this phenomenon also. I am certain that this has a
lot to do with volume!  Oh, and being able to play certain music that
is not permitted at other times...

Ceejay


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Re: [SlimDevices: Audiophiles] Transporter V.43 with knob fix

2008-06-17 Thread ceejay

marlowe;312862 Wrote: 
 What do I do to upgrade (which files should I download and run)? I am
 using Windows (XP). I did this before with FW40, but that was months
 ago and I've forgotten how to do it!

Download the .exe file from the location that Sean pointed at, and run
it.

HTH


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[SlimDevices: Audiophiles] Wiki page on How to Get the Best Audio Quality

2008-04-17 Thread ceejay

Hi

There has been a page in the wiki for some time now entitled How To
Get the Best Audio Quality.  Its VERY old - in fact it was this page
that inspired me to construct the Beginner's Guide, some time ago.

As part of the new wiki migration it now appears as
http://mwiki.slimdevices.com/index.php/How_to_get_the_Best_Audio_Quality

I have had a go at editing the page to bring it up to date (it was
written when SB2 was brand new!). However it wasn't my page to begin
with, and there are doubtless many other ideas that people would like
to drop in.

I think it would be good to stick to what I think was the original
authors intention: i.e. to stay away from the controversial and
esoteric stuff, and just answer the basic question how should I set
this thing up and use it, if audio quality is important to me?.

However what constitutes controversial is of course itself
controversial, so having done a basic update I will now stand back and
let the denizens of this forum have a go ... it is a wiki after all!

Over to you...

Ceejay


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Re: [SlimDevices: Audiophiles] SqueezeCenter-7.0.1-17957

2008-03-23 Thread ceejay

See the later parts of this thread:
http://forums.slimdevices.com/showthread.php?t=42960page=7

HTH


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Re: [SlimDevices: Audiophiles] New Transporter owner...

2008-03-07 Thread ceejay

Kris;276667 Wrote: 
 Hi Guys
 
 Firstly, WOW what a device. It's fantastic - I'm amazed at its detail.
 I'm running it streaming FLAC audio from a 2TB Nas, its mind blowing.
 I've connected its digital output to a Bel Canto DAC3 which connects
 into a Musical Fidelity A5 Integrated, powering JM LAB Electra 1007 BE
 speakers - the sound is stunning!
 
 Few issues I'm hoping someone can help me with:
 
 Volume Control - Which is the best device to control my audio keeping
 MAX quality? The Bel Canto DAC? The MF Amp or the Transporter?
 
 Currently, I have set the Transporter too MAX volume and adjust it
 further with the MF Amp.
 
 The other option is to adjust it via the Bel Canto - what do you
 suggest??
 
 
 Secondly, I've had the unit Freeze alot so far, which is disappointing
 along with the remote search/browse functions not working (it kinda
 gets into some strange loop)
 How can I determine the software version, and what version should I
 upgrade to?
 
 Thanks for listening
 
 Kris-

Yeah, its not bad, is it?

Just as a matter of interest - have you tried comparing the sound using
the analog outs from the TP straight into your amp with your current
setup?  The DAC in the TP ought to be at least as good as that DAC,
though of course this will be highly subjective.

For the volume control: as a general principle control volume as late
as possible, assuming that nothing is being overdriven in the chain. If
its convenient to use the amp volume control, then use it and leave the
TP and DAC at MAX.  Having said that, for normal 16 bit sources you do
have quite a bit of headroom before you will start losing any SQ.

The freezing is disappointing, it shouldn't do that.  Are you connected
wireless or wired? (wireless networks cause a lot of problems around
here.).

For the software version, go to settings on the web interface and
follow your nose. You should be running 7.0 these days.

HTH


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Re: [SlimDevices: Audiophiles] Questions on Transporter's Digital Volume Control

2008-01-15 Thread ceejay

coupon;259161 Wrote: 
 I am wondering how does the digital volume control work on the digital
 output signal path (ie. coaxial output from the transporter) on the
 transporter.  Will it degrade the digital signal when it's use in less
 then full volume output?
 
 Thanks

Many threads here on this topic already. including this one:
http://forums.slimdevices.com/showthread.php?t=39611highlight=digital+volume+control

The short answer is: eventually, yes, but you have quite a lot of room
to play without losing any resolution as the signal path is 24 bit and
most sources are only 16 bit in the first place.

If you are using the digital out you can always choose to lock the
digital output at max, and do your volume control downstream in your
amp.

HTH


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Re: [SlimDevices: Audiophiles] New Amp or A/V Receiver Suggestion

2007-11-18 Thread ceejay

There have been a few threads on this, though I can't immediately lay my
hands on one of them.

Basically you want to use a decent stereo amp to drive your stereo
speakers, but a more basic receiver for HT, including using the same
front speakers? 

Yes, this can definitely be done, I do this.  To make it work you need
first to be able to get the preamp output from your receiver for the
two front channels - if the receiver doesn't offer this (I'd be
surprised) then you're stuck.  Then you need to connect those outputs
to a spare input on the stereo amplifier: when you're playing DVDs the
signal will be decoded by the receiver, it will drive the surround
channels directly, and the fronts via your stereo amplifier.

Meanwhile you connect the SB directly to another input on the stereo
amplifier, which means you can play your stereo at good quality without
the receiver having a chance to mess it up.

One problem is that when playing DVDs you now potentially have TWO
volume controls to play with, which can be very confusing.  If the
receiver has a fixed-level output that's fine, but unlikely.  A more
likely option, especially if you are buying a new stereo amp, is to get
one with the option of fixed level inputs (sometimes called something
like HT bypass).

You last problem, a minor one, is remote controls: it can be a bit
fiddly to change everything around (you need to have up to FOUR remotes
in your hand to watch a DVD).  Harmony all-in-one remote recommended to
solve this sone!

HTH
Ceejay


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Re: [SlimDevices: Audiophiles] FLAC decode - server or SB?

2007-11-14 Thread ceejay

SteveC;242622 Wrote: 
 Sorry to jump on the thread, but I have never understood the slimserver
 settings to set where the decoding happens - could someone kindly spell
 out for me exactly what I set in that list of file types in the setup
 interface?
 
 I have two main file types: Apple lossless (.m4a) that I want to decode
 on the Transporter (or SB3 in another room) and higher bit-rate mp3s
 which I also want to decode on the Transporter or SB3, the choice being
 due to other network traffic.  Thanks. (I'm running the unix-type
 slimserver: SSODS on a Synology CS-406 NAS)

In Server Settings - file Types you tick the conversions that you want
to allow, and untick ones you don't.  If you allow more than one
conversion type for a given input file type, slimserver will choose for
you from a priority list which varies for each player type (depending on
its capability).

However none of the players have the ability to decode Apple lossless
natively - you will have to transcode to FLAC, WAV or MP3 (not
recommended).

MP3s are always decoded natively.

HTH
Ceejay


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Re: [SlimDevices: Audiophiles] SB+ info please

2007-11-05 Thread ceejay

Hey guys, please cool it.  This thread started out as a genuine
discussion on the relative merits of different kit, which I think is
what this forum is for.  Around about page 2, someone injected some
humour which someone else didn't get and we seem to have spun off into
another of those threads which give this board a very bad name.

Just stop, now.  Please.

Thanks
Ceejay.


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Re: [SlimDevices: Audiophiles] SB+ info please

2007-11-05 Thread ceejay

honestguv;240292 Wrote: 
 They were not intended to be provocative, I was simply disagreeing with
 ceejay and, hopefully, explaining clearly why. Since your reply does
 not address the point I was trying to make I may well have failed in
 this.
 
 The comments were of course addressed to the rational rather than the
 audiophiles in the thread and I used the word audiophile in the way of
 the older generation of the technically literate about sound and audio.
 The young increasingly seem to use the word for all sound/audio
 enthusiasts rather than just those that hold flat-earth beliefs.

Well, I'd be very sad indeed if we couldn't use a bit of humour and
that can include a bit of teasing, as you put it.  But every now and
again this does spin off threads - like part of this one, up to the
point of my previous post - which get just nasty, which I don't think
is a good thing.

BTW - I'd also prefer not to abandon the term audiophile to mean only
the flat-earth variety.  Maybe that means I count as young in your
understanding, which would be delightful (its a long time since anyone
called me that!).

Ceejay


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Re: [SlimDevices: Audiophiles] Choices

2007-10-31 Thread ceejay

You missed one.

7 - spend 500 USD on new music and listen to it for hours and hours...


Ceejay


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Re: [SlimDevices: Audiophiles] SB3 Bolder Mods

2007-10-30 Thread ceejay

servies;238874 Wrote: 
 ... when the bitstreams are the same, that there can be no difference in
 sound.

I know that several other people have already tried to point out the
error here, but I'll have another go...  This statement is
unfortunately false in the context of the digital output of a CD player
(or SB, etc).  Thats because the output signal contains clock (timing)
as well as data information, and the receiving DAC has to try to
extract both timing and data from a single waveform.  If that waveform
is imperfect (which it ALWAYS will be) then it becomes more or less
difficult for the DAC to recover both.

Some DACs, by design, are relatively immune to timing errors, however
most are not.  The resulting sound will therefore be noticeably
different depending on the quality of the digital source, even if the
data bits are identical.

This is entirely different from, say, a TCP/IP connection, or an IDE
disc connection, where the data transmission takes place entirely in a
digital domain and the only possible errors are bit errors (which are
likely to be corrected and fixed anyway).

HTH
Ceejay


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Re: [SlimDevices: Audiophiles] My TP system sounds so lifeless :(

2007-10-30 Thread ceejay

slimkid;238776 Wrote: 
 I'm afraid we have very serious case of upgradeitis here. Nurse, hand
 me a check book, please.
 
 K

I'm with slimkid on this one.  Every time I've ever upgraded my audio
system it has always sounded breathtakingly wonderful - for a while. 
But then you get used to it, and it starts to sound normal.

The only way to spot this is to go back to something that previously
sounded ok and which will now sound awful!

So, in other words, we keep spending more and more money just to have
an increasing number of audio systems sound awful??

Just play some music and enjoy it..

Ceejay


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Re: [SlimDevices: Audiophiles] New 3rd party power supply

2007-10-26 Thread ceejay

opaqueice;237885 Wrote: 
 Fair enough, but a radio is a very special case.  Its function is
 precisely to pick up RF radiation and amplify it.  Other audio
 equipment is designed *not* to do so.

True, of course.  Although I might quibble and say that it *should* be
designed to reject RF, but it may not always be the case that it
actually has been!

I do know that in the long-distant past I have designed electronic gear
that was meant to reject RF but still was affected by it in entirely
unexpected ways...

Ceejay


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Re: [SlimDevices: Audiophiles] New 3rd party power supply

2007-10-25 Thread ceejay

Well, my first though is that $259 seems rather a lot if all you're
trying to achieve is elimination of the potential RF effect of a
switching PSU.  I think I paid around $40 for the one unit I have,
attached to an SB2.

Incidentally, the answer to the question does the linear PSU make a
difference in this particular system is a resounding yes: no need for
DBT!!  The reason is that the SB2 is in close proximity to  an FM
radio, and the switching PSU makes the radio completely (and I do mean
completely) unusable. Moving over to a linear PSU made it usable
again.

I would consider this test to be proof of the proposition that the
switching PSU throws out RF noise that *MAY* affect other components
nearby.  Whether that effect would show up as a subtle degradation of
audio quality, as claimed by a number of listeners, I couldn't possibly
say.

Ceejay


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Re: [SlimDevices: Audiophiles] Pre-amp or amp with volume bypass

2007-10-15 Thread ceejay

teejay;235214 Wrote: 
 
 Sorry for the rambling so far, there is actually a question in all
 this. My HT receiver has pre-out connections for all channels, so I
 could imagine a setup like this:
 
 - multi-channel sources hooked up to my HT receiver
 - front L/R pre-out of the receiver going to a 2-channel amp or
 pre-amp
 - analog sources (SB primarily) connected to the 2-channel amp
 - front L/R speakers amplified by the 2-channel amp, C+surround by the
 HT receiver
 
 

Hi

I have almost exactly this setup and it works very well for me.  I have
a Transporter (and nothing else) feeding an Arcam FMJ A32 Amplifier,
driving 2 front speakers. Everything else feeds into a Denon 2805 AVR,
which drives the surround speakers directly and a spare input on the
Arcam.

For this to work, as you've noticed, its essential that you are able to
fix the volume level (at a level of your choosing so you can balance the
channels is handy but not essential if your AVR can trim volumes, I
guess most can) on the 2-channel amplifier - quite a few have this
feature (sometimes called HT Bypass or similar).

Its also a really good idea to have a decent remote - I use a Harmony -
so you can switch everything around with a single button push.

HTH
Ceejay (no relation)


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Re: [SlimDevices: Audiophiles] SB3 digital output quality

2007-10-12 Thread ceejay

DennyL;234726 Wrote: 
 If they sound different, then the two streams of numbers are different.
 Surely we can all accept that. 

Nope.

Ceejay.


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Re: [SlimDevices: Audiophiles] Which integrated Amp should I get?

2007-10-08 Thread ceejay

batangas;233628 Wrote: 
 I have my Transporter connected through old Quad 303 / 33 Pre and
 Power amp. Using my old Kef reference speakers. have been wondering
 on upgrading the amps to Arcam top of the range. Any thoughts?

Not quite top of the range but my Transporter is connected to an
Arcam FMJ A32 and it works pretty well for me...

Ceejay


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Re: [SlimDevices: Audiophiles] Inexpensive System for Kitchen/Breakfast Area

2007-09-29 Thread ceejay

Or, in a similar vein, these:
http://www.acoustic-energy.co.uk/Product_range/Aego_series/Aego_M.asp

I have these in my office system and am very happy with them...

Ceejay


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Re: [SlimDevices: Audiophiles] signal strength

2007-09-21 Thread ceejay

it may be that the effective data rate you are able to get is reduced by
interference to the point where it is less than the data rate of your
music.  Try streaming a low bit rate mp3 - or internet radio station -
and see what happens.

Ceejay


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Re: [SlimDevices: Audiophiles] Design miss in SB3 digital output? or Slimserver problem ?

2007-08-01 Thread ceejay

Patrick Dixon;218286 Wrote: 
 Good post.
 
 However, I think that identifying the source/method is an unnecessary
 and overcomplicated step.  You simply need to repeatedly be able to
 detect a difference when there is one, and no difference when there
 isn't.
 
 Identifying which is which is not required to prove that the two cases
 are different, and trying to do it introduces a whole new set of
 perceptive errors into the experiment.
 
 Once you have established a difference, you can then set about trying
 to identify what that difference is, and whether one case is an
 improvement on the other.


Well, I guess what this means in practice is that if OP did a proper
blind test and wrongly identified the source 80-90% of the time, that
would demonstrate an audible difference: though it would beg an
interesting additional question as to why he preferred option A while
sighted and option B while blind...

Ceejay


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Re: [SlimDevices: Audiophiles] Volume Control

2007-07-31 Thread ceejay

RadioClash;217748 Wrote: 
 Seems like I remember reading in another long thread that it is better
 to set the SB volume to 63 in slimserver (0 volume).  Are you saying it
 is better to set the volume to full in slimserver (0)?
 
 These settings are confusing

You may be confusing the volume control with the Preamp volume
control (SB only, not TP, at least on my installation).   The Preamp
volume control shows db of attenuation (analog outputs only), so 0 = no
attenuation = full volume.

The normal volume control goes from 0 to 11 on the web interface and 0
to 100 (was 0 to 40 for a while) on the remote interface.

HTH
Ceejay


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Re: [SlimDevices: Audiophiles] Volume Control

2007-07-23 Thread ceejay

blakeh;216639 Wrote: 
 This sounds like a good idea, but the signal is still being processed by
 the SB3 even if it's turned up to max.
 
 

In addition to what Jim said ... if the SB volume is set to max, then
the digital out signal is NOT being processed by the SB, it just passes
the bits straight through.  Only if you ask for attenuation will it make
any changes, in the digital domain.

The setting mentioned by Jim was added mainly for peace of mind in
people like yourself who want to be sure that the bits are passing
through unchanged: it has the added bonus that you can use the volume
control for adjusting just the analog output (in case you are driving
two separate devices on the analog and digital outs).

Ceejay


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Re: [SlimDevices: Audiophiles] Audiophile wanna-be

2007-07-19 Thread ceejay

This song predates the term audiophile by a few decades but otherwise
has it pretty much right:

http://www.lyricshornet.com/1034464/Donald-Swann-Song-of-Reproduction-Lyrics

Ceejay


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Re: [SlimDevices: Audiophiles] Audiophile wanna-be

2007-07-18 Thread ceejay

There's really only one kind of audiophile - broke ! [= no money in case
that doesn't translate to your locale].

For the real low down, look in YouTube for an excellent video on the
Audio Club of Athens (also linked from a thread in this forum
somewhere).

Ceejay


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Re: [SlimDevices: Audiophiles] s/pdf SB better than s/pdf soundcard pc?

2007-07-16 Thread ceejay

jaysung;214795 Wrote: 
 I presume that your mainboard and the SB alike have optical digital
 outputs. So there should not be any electrical influence ones the
 signal has passed the optoelectrical converter...
 

Not so... the optical digital outputs are directly driven by
electrical-to-optical devices which will faithfully transmit a lot of
the noise - certainly any jitter - which they are presented with.

 
 But I can't see why the squeezebox (a very tightly packed package)
 should induce less electrical noise than a fully grown pc.

That's easy - there is a lot more going on inside a PC than inside an
SB, and there is generally no particular design goal of the PC designer
to minimise the electrical noise.

But, please note that I have only been arguing that there *might* be a
difference - whether there is one in a given case is another matter
entirely.

Ceejay


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Re: [SlimDevices: Audiophiles] s/pdf SB better than s/pdf soundcard pc?

2007-07-15 Thread ceejay

No, its not always the same.  Although the sequence of 1s and 0s ought
to be the same, this has to be represented by an analog electrical or
optical signal which can have timing or other imperfections.  These
imperfections may or may not trouble the device that is receiving the
signal: a signal with a lot of noise in it will obviously present more
of a challenge to the receiver.

Typically this shows up as jitter (search the forums for many, many
threads on this topic) which can have some subtle distorting effect on
the receiver.

But a really top class receiving device (presumeably a DAC in this
case) might be able to overcome any noise and make all sources sound
alike.

HTH
Ceejay


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Re: [SlimDevices: Audiophiles] s/pdf SB better than s/pdf soundcard pc?

2007-07-13 Thread ceejay

Well, there is a reason why there *might* be a difference - the
electrical noise within a computer case is generally very high, and
could easily do nasty things to the level of jitter on the digital
output.

Whether thats important in your case will depend on the ability of the
Arcam's DAC to reject jitter.

Just listen! If you can't hear a difference then there isn't one, and
you might as well liberate the SB to work for you in another room...

IMHO.

Ceejay


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Re: [SlimDevices: Audiophiles] Streaming WAV audio ?

2007-07-06 Thread ceejay

brjoon1021;212852 Wrote: 
 I read in a thread somewhere that streaming WAV audio was referred to as
 a kind of freebie upgrade for sonic quiality when compared to flac.
 
 I am pretty new to all of this. What is WAV, how do you rip to WAV ?
 Are there any drawbacks other than size of file (assuming it large) to
 using WAV. Is that what all of the audiophile people are doing?
 
 Thanks,
 
 B.

Most rippers rip to WAV in the first place, then transcode to FLAC, MP3
or whatever else you ask for.  EAC will do this easily, for example.

Besides size of file, streaming WAV uses more network bandwidth which
may be an issue in some marginal wireless networks. More importantly,
perhaps, you can't (except by using some highly non standard stuff) add
tags to WAV files, which makes attaching metadata to your music files a
bit tricky (you're limited to whatver you can encode in the file path
eg /genre/artist/album/...).

Some people do claim that WAV files sound better than FLAC, but I've
yet to see an even half-convincing explanation of how this might work.

You can always, of course, rip to FLAC (which gives you the smaller
files and tagging capability) and have slimserver transcode to WAV on
the fly, which would give you the alleged improved sound quality at the
only cost of losing FF/RWD capbility (because you can't do that on
transcoded streams).

HTH
Ceejay


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Re: [SlimDevices: Audiophiles] SB vs SB+ vs Transporter as transports

2007-07-05 Thread ceejay

cliveb;212552 Wrote: 
 There's a law in the UK whose name I forget (I think it includes the
 phrase distance selling) which concerns buying things mail order.
 Basically, anything you buy mail order can be returned for a full
 refund within a certain number of days (not sure how many, probably 7
 or 14) if you decide you don't like it. Obviously you lose the carriage
 charges, but apart from that it's a free trial. I'm sure someone else
 around here knows the details of this law in more depth and can clarify
 things.

7 days. See
http://www.oft.gov.uk/advice_and_resources/resource_base/legal/distance-selling-regulations/

but note the seller is within the rights to refuse a return if the
packaging is damaged (ie you've opened it!). 

Ceejay


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Re: [SlimDevices: Audiophiles] Here is why no FF/RW

2007-06-28 Thread ceejay

Hi Sean

thanks for your (as usual) helpful commentary.

I'd just like to chip in with some thoughts: you've described well why
a scanning feature is not likely to be forthcoming, and also the
difficulty with transcoded formats.

Having read many of the same threads as you obviously have, I think
this leaves at least one problematic area still to discuss - the UI.

If you start from the premise that the FF/RWD function that we have is
all we are going to have, I think there is still a legitimate concern
over the way we access it (the overloading of the FF/RWD buttons with
the skip functions, short and long presses...).  Quite a few people
find this hard to use - this includes me, though personally I'm not
that bothered as its not a feature I consider critical.  

Just separating Skip and FF/RWD buttons on your next remote (as was
suggested in a recent thread, can't find it for now) would help.

Ceejay


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Re: [SlimDevices: Audiophiles] Here is why no FF/RW

2007-06-28 Thread ceejay

krzys;211389 Wrote: 
 Can you explain please?
 Chris

http://forums.slimdevices.com/showthread.php?t=35468highlight=Moose


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Re: [SlimDevices: Audiophiles] Will this Elpac Power Supply Work?

2007-05-30 Thread ceejay

Videodrome;205517 Wrote: 
 
 Am I on the right track? Help!
 
 Thanks,
 
 VD

Nope, that's definitely a switching power supply (see the catalog page
details).

Ceejay


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Re: [SlimDevices: Audiophiles] Thoughts on a 2 channel rig

2007-05-29 Thread ceejay

patherb2;205233 Wrote: 
 Yes, this will be a completely separate setup.  

ok - but still not clear if you are going to a separate location.

If your motivation is, as you say, to get your 2-ch signal away from a
multichannel amp then you can always have both driving the same front
speakers.

Just have a straightforward 2-ch setup driving your fronts: then for
the multi-channel take pre-outs for the two front channels from the
receiver into spare inputs on the 2-ch amp, preferably with a fixed
gain (HT bypass) option, while driving the surround channels directly.

I have this set up with a Denon receiver and it works well - but a
universal remote is recommended to get everything switching correctly
together!

Ceejay


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Re: [SlimDevices: Audiophiles] Thoughts on a 2 channel rig

2007-05-28 Thread ceejay

One question for OP - is this additional setup going into a completely
separate location from the original one?  I'm presuming so since you
mention a separate SB... in which case it would be interesting to know
the motivation for the new system.  Is it because you just need music
in a different place, or are you trying  to get a better 2-ch
dedicated system just for music?

Its just that you already have GS10s as your fronts, which are pretty
good - are you expecting the RS6s to be as good?

Ceejay

(2ch setup: Transporter + Arcam FMJA32 + GS20s = music)


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Re: [SlimDevices: Audiophiles] Different servers sound different

2007-05-18 Thread ceejay

IMHO the most likely explanation for any difference between different
server installations would be if some configuration difference had
accidentally crept in while installing - perhaps different volume or
preamp settings, or file format transcodiing options.

If all of those variables have indeed been eliminated, then I think
you've just done an excellent demonstration of the power of the placebo
effect.

On the other hand, if you do want to go looking for differences, you
will first need to be clear about whether you are streaming the WAV
files directly to the SB, or whether (the default) they are being
transcoded to FLAC before being sent. 

If the former, then you are going to have to think very hard about what
mechanism might be in play to allow the OS that is sending the WAV files
down a heavily buffered IP network to affect the way that the SB is
delivering the bits to a DAC.

If the latter, then we are back in the FLAC sounds different to WAV
discussion, which I'd rather stay out of, though I do note that
proponents of this argument usually offer an explanation along the
lines that there is some odd effect of the FLAC-WAV decoding in the SB
which is causing an audible outcome... how that would work when the DAC
is external to the SB I really can't imagine.

Unless of course the servers are generating airborne or mains-borne
interference with the DAC, in which case the SB is irrelevant
anyway...

IMHO.

Ceejay


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Re: [SlimDevices: Audiophiles] Hum?

2007-05-18 Thread ceejay

AFAIK audio kit only hums when it doesn't know the words?


Ceejay
(slinking into the corner)


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Re: [SlimDevices: Audiophiles] Help: speakers and kid's safety

2007-05-16 Thread ceejay

My floor standers, like many others, came with a fairly broad base - you
would need to deflect the speakers through a large angle (sorry, not
measured it) before they fell over.  

However this will,as you say, entail lots of listening and expense and
even then will only reduce the risk somewhat.

If it were me, I'd be looking for ways to tie down the back of the
stand to the floor (somewhat like the way we tie the top of bookcases
to the wall for much the same reasons).  Screw into the floor, a short
strap, and then (the tricky bit) some attachment to the back of the
stand.

You can also reduce the risk of toppling sideways just by placing
objects (eg equipment racks, TVs, CD racks...) beside the speakers.

Whatever, its a compromise.  True audio nirvana will only reappear when
the kids are big enough that you don't have to worry about this sort of
thing anymore!

Ceejay


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Re: [SlimDevices: Audiophiles] Using Transporter as a pre amp has me puzzled.

2007-05-09 Thread ceejay

Well, unless you have a means of getting the two front channels out of
your 5.1 amp and into one the TP inputs, you may be stuck.  And I'm not
sure I'd call the TP a preamp, really - a multi-input DAC, perhaps.

I have a slightly similar setup, but don't have your problem as my main
2 channel amplifier is an integrated amp with spare inputs - so I can
take the preouts from my 5.1 amp and feed them into the 2-ch.

Could you find an alternative (integrated) amp?

Ceejay


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Re: [SlimDevices: Audiophiles] SB3 to power amp. Confused

2007-04-04 Thread ceejay

Well, I'll try...

First can you just confirm that you have the Preamp Volume Control
(Player Settings-Audio) set to 0, ie 0dB attenutation, ie max output
level?

If that is the case, then you are indeed running the SB at maximum
output.  Your problem is that none of the specs you've quoted for the
amplifier are really relevant. The input impedance of 60k just tells us
that the SB will almost certainly be happy driving that. It tells us
nothing about the gain of the amplifier - i.e. what input voltage
corresponds to a given (max, say) output.

It may be that the balanced inputs have a different gain/sensitivity:
it may also be that the DAC has a different output level than the SB.

But if you're happy that the max volume you're getting is loud enough,
that's great - it means you don't have to fiddle around with external
attenuators to reduce the risk of blowing your speakers...

HTH
Ceejay


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Re: [SlimDevices: Audiophiles] Some thoughts on transporter's jumpers to alter analog volume out

2007-04-03 Thread ceejay

opaqueice;192188 Wrote: 
 Why do you say that?  
 
 The jumpers on the TP are analogue attenuators, right?  It's not at all
 obvious that not using them will give the best S/N 

Well, if not obvious then it is at least likely ...  Noise introduced
by the amplifier after its gain control is of course irrelevant here -
it is whatever it is and nothing we do with the TP will change it. 
Similarly, noise introduced in the TP *before* the attenuators is fixed
in relation to the signal and can't be affected by what we're doing
here.

On the other hand, noise introduced by the amplifier *before* its gain
control will be amplified more if the input is lower: so introducing
attenuation within the TP will make this worse.

Similarly noise introduced in the TP after the attenuators, or in the
connecting wire, will be more noticeable if you have a lower TP
output.

So, as you say, it depends on where the noise is being introduced: but
there isn't any place that SNR will be improved by lowering the TP
output level.

That's not to say that the overall sound won't be better - its
plausible that there are distortion effects within the amplifier which
means that a nicer sound is produced at differing gain levels, but
this is not the same as an SNR discussion.

IMHO.

Ceejay


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Re: [SlimDevices: Audiophiles] Some thoughts on transporter's jumpers to alter analog volume out

2007-04-03 Thread ceejay

opaqueice;192266 Wrote: 
 
 Suppose for simplicity there are only two types of noise - noise before
 amplification N_B, and after amplification, N_A.  Then the total signal
 going to the speakers is something like
 
 g*(S + N_B) + N_A,
 
 where g is the gain, and S the original signal.  The final signal to
 noise is
 
 g*S/(g*N_B + N_A)
 
 So if the noise is mostly from the TP, so that g N_B  N_A, the signal
 to noise is largely independent of gain, and attentuating S (and N_B)
 doesn't do anything.  On the other hand if N_A  gN_B, so the noise is
 mostly from after amplification, signal to noise will improve linearly
 with gain, and so it's better to attentuate.
 
 Actually if this simple formula were correct it would always be better
 to attenuate, but of course there could be noise components that scale
 faster than linearly with gain, not to mention distortion.

This is one of those cases where the maths looks convincing, and its
only bacause the proposition was so obviously wrong that I took the
trouble to work out why.

Noise introduced after the amplifier's gain control has to be
irrelevant: for a given output volume, the signal level is whatever it
is, and the noise introduced by the amplifier is whatever that is. 
Nothing earlier in the chain can affect the S or N values, therefore
the S/N ratio.

The corresponding flaw in the equations is that, for a given output
level, g*S is constant. Increasing g will increase the signal level and
therefore the output volume.  Comparing S/N ratios for different final
output volumes is pretty pointless - the SNR will always be better for
higher volumes.

I think you might have confused yourself by over-simplifying the
system, which actually has several points of amplification in it...

Ceejay


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Re: [SlimDevices: Audiophiles] SB3 vs SB3/Elpac vs SB3/Lavry

2007-03-29 Thread ceejay

Ben Diss;191022 Wrote: 
 
 To test this, I had played my favorite test track, Hotel California,
 through the SB3/Elpac/Lavry and asked my wife to randomly unplug and
 then plug in the power supply from the wall.  We did this ten times and
 I could not tell the difference in any test.
 

Yes, thats the kind of test I was thinking of.  I think you've just
confirmed your finding!

 
 To go one step further, knowing that I have very clean power and a dead
 black background I played a test track of all zeros representing
 silence.  I turned the volume up all the way and as usual I heard
 nothing, absolutely nothing.  I plugged in the stock SB power supply
 and I heard no change.
 

I'm not so sure about this test - I think it demonstrates that, in your
system, there's no noise from the PSU getting in after the DAC stage. 
There is at least a possibility, however, that the (remember they were
subtle) changes reported by some people are in the digital domain,
inducing jitter for example, which might have the affect of altering
the quality of audio without changing the blackness of the
background.

 
 Thinking about this some more I wondered if the RF interference might
 be a problem for some systems and not for others.

Personally I think we've seen enough reports to have a decent working
hypothesis here - there are plenty of systems, including yours, where a
linear PSU makes no difference at all, and there are others where the
PSU noise is having some sort of effect.

Ceejay.


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Re: [SlimDevices: Audiophiles] SB3 vs SB3/Elpac vs SB3/Lavry

2007-03-29 Thread ceejay

andy_c;191035 Wrote: 
 Here's a couple of links to posts describing some experiments that Dan
 Banquer did with a Squeezebox and an AM radio to check for EMI.
 
 http://www.audiocircle.com/circles/index.php?topic=30075.0 
 http://www.audiocircle.com/circles/index.php?topic=30207.0
 
 In Dan's case, he was using an external DAC, and by replacing the RCA
 cable between Squeezebox and DAC with a TosLink cable, he was able to
 fix the problem.

Interesting, thanks for those.  My limited experiments suggested to me
that the noise in my case was being radiated by the output power lead
from the PSU (adding a ferrite core at the PSU end significantly
reduced the noise).

I think the moral of the tale is that noise, once it exists, can get
from A to B via several routes!

Ceejay


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Re: [SlimDevices: Audiophiles] Cheap tweaks that really work

2007-03-29 Thread ceejay

TCM;191066 Wrote: 
 From AudioCircle:
 ' 
 Cheap/Free Tweaks ($10.00 or less)'
 (http://www.audiocircle.com/circles/index.php?topic=35936.0)
 'Cheap Tweaks ($100.00 or less)'
 (http://www.audiocircle.com/circles/index.php?topic=37980.0)
 . :-D

Thanks for posting those links.  Following my nose, as one does when
surfing, I came upon

http://www.positive-feedback.com/Issue1/beltpen.htm

which has to be the funniest thing I've come across in a long time...

Ceejay


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Re: [SlimDevices: Audiophiles] SB3 vs SB3/Elpac vs SB3/Lavry

2007-03-28 Thread ceejay

Ben Diss;190935 Wrote: 
 Gary-  I did not unplug it, however it is plugged into a completely
 different outlet.

You need to be aware that it is suspected, by me at least, that the
nasty stuff is airborne transmitted, not carried via mains.  So a safer
test would have been to unplug completely.

For next time, perhaps...

Ceejay


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Re: [SlimDevices: Audiophiles] SB3 vs SB3/Elpac vs SB3/Lavry

2007-03-28 Thread ceejay

slimkid;190991 Wrote: 
 Just out of curiosity, do you unplug all such devices throughout your
 home while listening to the music. I mean, there must be at least 10 of
 them in typical NA household.

Nope, but then again when I'm listening normally to music I'm not also
trying to make a carefully controlled experiment to see whether the PSU
has any effect.

My direct experience with an SB stock PSU is that it throws out crud
with a range of several feet - so similar devices on the other side of
the house aren't likely to bother me, just the ones near my important
gear.

I had to buy a Linear PSU for one of my SB2's because the stock unit
made the Tivoli One radio, to which the SB is attached, completely and
utterly unusable.

I surmise - can't say anything stronger than that - that the same EMI
that is killing my radio might also explain some of the less dramatic
sound degradation effects that *some* users have reported.

Oh, and of course, not being in a NA household everything must be
different for me :)

Ceejay


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Re: [SlimDevices: Audiophiles] Q: Inexpensive Linear power supply

2007-03-27 Thread ceejay

Hmm, not sure about this.

Personally I think the issue here is about plausibility.  Lets say I
make two claims about modding an SB:

(1) it sounds better if I put a spot of green paint on top
(2) it sounds better if I change the DAC to a different design.

Of these, I think (2) is plausible but (1) is not.  Of course, my DAC
mod may or not in fact make it sound better, but it is at least
plausible that it might.

Arguments here normally occur because one of two things is happening.
(a) someone insists on promoting an idea which someone else thinks is
clearly absurd
(b) someone insists on trashing an idea which someone else thinks is
worth at least considering

Or, to put it another way, because two people differ over whether an
idea is plausible or not.

Now if we could all agree on what was plausible and what was not, we'd
be happy (and probably bored because this forum would be so dull).  

But we don't agree for a variety of reasons. 

- we have different levels of knowledge and experience
- we have different thresholds of tolerance for when a whacky idea
becomes worth considering
- we have different levels of exposure to the person making the
original statement (i.e. trust)

So, its hard not to get frustrated when a topic in which one might
consider oneself to be expert, or at least knowledgeable, comes up -
and somebody makes a statement or claim that is clearly rubbish.  Not
all opinions are equally valid (unless we are discussing purely
subjective matters, of course).

Its equally frustrating when someone trashes a proposition when they
have no good reason to.

In an ideal world we'd be able to conduct reasonable debates on some of
these interesting topics, without feeling the need to all agree on a
single answer.  I doubt we'll ever get there, not least because all of
the participants in these threads have such wildly differing starting
points.

But, please can we at least avoid the pejorative? (Dullard,
fascism, rude, arrogant are just a few recent examples).

Thank you.
Ceejay


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Re: [SlimDevices: Audiophiles] What is connected to your Transporter?

2007-03-24 Thread ceejay

Very simple.

Transporter - Arcam FMJ A32 amplifier - Monitor Audio GS-20
speakers.

Actually I suppose for completeness I should also say I'm using the
wireless bridging feature to connect an NSLU2 (which is in turn acting
as FTP server for my Toppy PVR) to the wireless network.

Maybe not quite so simple after all!

Ceejay


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Re: [SlimDevices: Audiophiles] Today's upgrade

2007-03-20 Thread ceejay

P Floding;188495 Wrote: 
 
 Are those testimonials fake? I hope so, at least...

Here's a clue:

On the Clever Little Clock:
I can't believe these things improved the overall sound as much as
they did! Is it resonance control that's lowering the noise floor? I
hear greater detail in quiet passages and better front to back image
definition. Very impressive!! - Glenn, Feb 2007

On the Duplex Covers:
I can't believe these things actually improved the overall sound as
much as they did. Is it resonance control that's lowering the noise
floor? I hear greater detail in quiet passages and better front to back
image definition. Very impressive! - Glenn, Dec 2006

ROFL.

Ceejay


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Re: [SlimDevices: Audiophiles] external DAC for Squeezebox

2007-03-07 Thread ceejay

Many threads on this already, such as
http://forums.slimdevices.com/showthread.php?t=32740highlight=external+DAC%2A

This is one of the uses for the digital output - another would be the
case where the SB is being used with an all digital
amplifier/receiver.

Ceejay


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Re: [SlimDevices: Audiophiles] Please recommend best quality solution

2007-03-01 Thread ceejay

Best way to answer the speed of access problem is to try it out -
download slimserver and softsqueeze. Point slimserver at your existing
mp3 collection and you will be able to see exactly how it works with a
library of that size.

Personally I found that 512MB on Windows wasn't quite enough - not that
Slimserver used all of that, but when there were other things going on
then my total memory usage often got up to 700MB or more.  Memory is
cheap so I upgraded to 1GB.

Can't comment on the sound quality of the other device as I've never
heard one, but the TP sounds excellent...

HTH
Ceejay


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Re: [SlimDevices: Audiophiles] The Greek Audiophile

2007-02-27 Thread ceejay

Hmmm, here's a question to sort out the men from the boys:

Which cost the most:
(a) your car
(b) your audio
(c) the contents of your wardrobe?

You only qualify as audiophile if the answer is b.

Ceejay.


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Re: [SlimDevices: Audiophiles] Do you use WAV or FLAC ? Pros vs Cons.....Please :-)

2007-02-22 Thread ceejay

1 - FLAC files are smaller. Spend less on discs.

2 - You can save network bandwidth without having to transcode from WAV
to FLAC at the server.

3 - You can get more esoteric tags in if you want to (eg ReplayGain,
multiple Genre values, unusual tags like Composer or Conductor,
nonstandard tags like Performer).

Of these (1) is important to me (it means I can manage with one disc
instead of two for my main library) and (3) is absolutely essential (I
could not manage without multiple genre values).

Ceejay


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Re: [SlimDevices: Audiophiles] Modding the Squeezebox

2007-02-15 Thread ceejay

95bcwh;180712 Wrote: 
 Tomjtx had a beef with Bolder, so you can ignore his opinion about
 Bolder's product.
 
 

95bcwh - I don't have an opinion to offer on the relative merits of
these mods etc but I am getting *very* *very* bored with your sniping
and feuding on this forum.

In his post, tomjtx has expressed an opinion, to which he is entitled,
in civil terms.

Post your own opinions, that's fine, but lay off the rest of this
cr*p.

Ceejay


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Re: [SlimDevices: Audiophiles] time for a DBT-free zone??

2007-02-15 Thread ceejay

P Floding;180742 Wrote: 
 Here is a nice example how one extermely low probability, half crazy,
 theory ascends into established truth:
 
 http://en.wikipedia.org/wiki/Alfred_Wegener

Nice example.  The history of science has several (many?) examples of
how outrageous ideas eventually become mainstream.

However, let's not forget that there are far, far more examples of
outrageous ideas that remain outrageous because they always were
stupid.

So, if there is general scientific consensus on something (eg HIV as a
cause for AIDS, or CO2 as a cause for global warming) then the
*likelihood* is that it is correct. Not certainty, of course - nothing
scientific is ever certain.

But to argue from here is an example of where outrageous became
mainstream to therefore I will disbelieve all scientific consensus
is, shall we say, a bit dodgy.

Just an opinion, of course.

Ceejay


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Re: [SlimDevices: Audiophiles] Manage files

2007-02-12 Thread ceejay

You've not said what OS you are using , but your best way to get out of
this mess might be to filter on file size, eg find all files in your
music folder over or under a certain size... this might not be
foolproof if you have some especially short or long tracks, of course!

Ceejay


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Re: [SlimDevices: Audiophiles] plug and play linear supply (part 2)

2007-02-07 Thread ceejay

Denjo;178452 Wrote: 
 Hi 
 I am new to this forum and have been reading this thread with keen
 interest. I have an Altmann DAC (12 v, ideally sealed lead battery) and
 the SB3 (5 v). I have been exploring the idea of buying a quality linear
 power supply and stumbled upon this website which seems to sell
 commercial and medical grade PS. Not being technically minded, I wonder
 if this will suit my needs and elevate my system to higher ground!
 
 Thanks very much for looking!
 
 Best Regards
 Dennis
 
 Here is the LONG url:
 
 http://www.rssingapore.com/cgi-bin/bv/rswww/searchBrowseAction.do?obs=sObsname=SiteStandardNo=0N=0Ntk=I18NAllNtt=3839744Nty=1D=3839744Ntx=mode%20matchpartialDx=mode%20matchpartialcallingPage=/jsp/line/line.jspBV_SessionID=0699780411.1170821687BV_EngineID=ccdjaddkdhjdfhecefeceeldgondhgn.0cacheID=sgnetscapeNr=avl:sg

That URL doesn't work - it was unique to your session and has timed
out. You'll need to find another way to point at the product you are
thinking of.


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Re: [SlimDevices: Audiophiles] plug and play linear supply (part 2)

2007-02-07 Thread ceejay

I wouldn't recommend it. It has outputs you don't need and it does'nt
look like a house-friendly case. Search this forum for other
suggestions.


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Re: [SlimDevices: Audiophiles] my ripping tool of choice

2007-02-06 Thread ceejay

tamanaco;178086 Wrote: 
 Besides not being able to remove gaps and having the ability to work
 with problematic CDs... what are the reasons why you generally use
 EAC for ripping? The convinience of saving steps and using a single
 tool to rip to flac, tag and get my album art is very appealing to me.
 What do you do about gaps when you use dBpowerAmp?
 
 

Just to be clear about gaps ... the point is NOT that you want gaps to
be removed - you want them to be preserved so that when you play the
album through you get the same pattern of gaps (or no gaps) as on the
original CD.  My only point was that there is a setting in EAC to
change what it does with the inter-track gap which might have made a
small difference to file sizes, sorry for any confusion.

Ceejay


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Re: [SlimDevices: Audiophiles] plug and play linear supply (part 2)

2007-02-06 Thread ceejay

j.wales;178111 Wrote: 
 
 
 All that being said, what a difference, night and day!  I can't believe
 it.  Honestly.  And to answer the double blind test question, I have one
 better.  My wife, whom has a fantastic ear, and indulges me in the
 hobby, was sitting on the couch reading the newspaper and she put it
 down, shot a look, and asked how much I spent!!!  She had no idea that
 I made any changes to the system.  As far as she was concerned we were
 sitting on the couch, casually listening, reading as we try to do
 whenever we can.  
 
 

Interesting observation.  One simple test you might want to try, in the
interests of science: what happens if you leave your new setup
untouched but plug the old stock PSU into the mains supply (preferably
in the same socket it was before)?  If the EMI theory is correct, this
ought to affect your sound

Ceejay


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Re: [SlimDevices: Audiophiles] plug and play linear supply (part 2)

2007-02-06 Thread ceejay

opaqueice;178235 Wrote: 
 ...  as for EMI, it's not impossible it could be the culprit, although
 as we discussed earlier in this thread it's odd that it would affect
 music playback from the SB but not the noise floor.
 
 

Not that odd. For example, if you were using the digital outs from the
SB, and the EMI messed up the DAC's ability to handle jitter, that
would degrade the perceived sound quality without showing up as a
worsened noise floor.  Add you can easily get similar distortions in a
purely analogue domain, where noise induced in a circuit which isn't
part of the main signal path induces bad behaviour.


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Re: [SlimDevices: Audiophiles] plug and play linear supply (part 2)

2007-02-06 Thread ceejay

jhm731;178354 Wrote: 
 Simple/Cheap EMI/RFI Solution- install some a ferrite cores at both ends
 of the 6' non shielded leads. Double ot triple wrap the wire around the
 cores. See www.steward.com for more information.

Indeed, I did try that to solve my own extreme EMI problem, and it did
reduce the problem somewhat - but nowhere near enough, which is why I
coughed $40 for a linear supply...

Ceejay


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Re: [SlimDevices: Audiophiles] my ripping tool of choice

2007-02-05 Thread ceejay

tamanaco;177752 Wrote: 
 
 
 A couple of questions...
 I noticed that the resulting compression ratios and the file size of
 tracks ripped using dBMC were a bit different than those ripped with
 EAC, but I could not figured out how to change the compression ratio or
 why the EAC ripped files are bigger. 
 

Theres a set of command line options on flac.exe (-0 to -8) to make it
try harder to compress, though it takes a lot longer for not very much
extra compression.

Its also conceivable that the gaps are being handled differently,
though that would make some tracks bigger and others smaller.

 
 I also noticed that unlike EAC,  dBMC does not create a .m3u (Playlist
 file) per CD/song ripped. Do I miss something if dBMC does not create
 this file automatically? I don't recall#8230; but does the Slimserver
 require .m3u files for all the CD ripped in order to build/customize
 playlists? I can not hear any difference between the files ripped and
 tested, but I want to make sure that I'm not missing something obvious
 before I rip the next bunch CDs. Lastly, does anyone have tips or
 recommended settings to rip CDs to flac files with dBMC so that the
 resulting flac take full advantage of the features of SS and SB3?  
 
 

Creating the M3U is an option in EAC, you didn't need it, SS won't miss
the file.


Ceejay


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Re: [SlimDevices: Audiophiles] FLAC Encoder recommendations - and a Winamp impression

2007-02-03 Thread ceejay

pablolie;176866 Wrote: 
 
 
 And I have to admit to downloading a fair amount of stuff from iTunes,
 which of cource comes at 128kbps... and while I'll admit I'll go and
 re-rip it at 320kbps MP3, it ought to probably only merit 256kbps in my
 opinion due to the originally compromised format - sounds good though,
 which makes me assume iTunes tends to doll up the sound and flatter it
 a little, too.
 
 

Not sure what you meant by this. Do you mean transcoding the 128kbps
downloads into a higher bitrate like 256? If so, don't waste your time
and disc space - the information lost by compressing to 128kbps is lost
forever.

If you want better quality you'll need to rip a CD, or find a higher
quality download.

Ceejay


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Re: [SlimDevices: Audiophiles] time for a DBT-free zone??

2007-02-02 Thread ceejay

While I agree that the continuous repetition of certain viewpoints -
especially when not really adding to a particular debate - is extremely
tedious, I don't think we would do ourselves any good by simply banning
one of them.

That way lies balkanisation - a Subjectivist Audiophile forum separated
from an Objectivist Audiophile forum by a big wall with barbed wire and
searchlights on top!

Lets not go there.

Ceejay


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Re: [SlimDevices: Audiophiles] Transporter on the cover of Stereophile, Feb 2007 issue

2007-01-31 Thread ceejay

But surely all of us that hang out on this and other similar fora are by
definition displaying AS tendencies?

It would certainly explain some of the exchanges here...

Ceejay


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Re: [SlimDevices: Audiophiles] Any one tried isolating feet on their SB ?

2007-01-31 Thread ceejay

So just which part of the SB would be affected by vibration, I wonder?

Ceejay


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[SlimDevices: Audiophiles] Re: plug and play linear supply (part 2)

2007-01-30 Thread ceejay

jhm731;175585 Wrote: 
 As I predicted in your part 1, I didn't think you’d hear any
 difference with this cheap linear PSU.

Well, of course! Any solution to an audiophile problem that doesn't
cost at least a grand can't possibly be worthwhile :)

(runs for cover)


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[SlimDevices: Audiophiles] Re: plug and play linear supply (part 2)

2007-01-29 Thread ceejay

opaqueice;175497 Wrote: 
  Which raises an interesting question - if the stock wallwart really
 sounds worse than the linear, why isn't there a difference in the noise
 floor for the SB when it's idle or playing a silent track?  Doesn't it
 seem odd that the effect is audible during complex musical passages,
 but not present at all when the noise floor is clearly audible?
 
 Which brings me to music.  So far, I don't hear any differences.  I'll
 try again later when I have more time to listen.

Refer to Sean's earlier posts on this topic. his measurements suggest
that there really is no difference in the performance of an SB with a
linear or switching PSU, because of the internal regulation that takes
place.

OTOH there is plenty of evidence for severe RFI pumped out by the
switching supply, and if your downstream kit is affected by it you will
hear a difference. Otherwise, otherwise.

Ceejay


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[SlimDevices: Audiophiles] Re: A Cut-Rate Audio phile’s Experience With a Linear Power Supply

2007-01-24 Thread ceejay

Sean has published some thoughtful notes on this forum about linear
power supplies - to the general effect that there isn't any reason why
they should make a difference (given the internal regulation that takes
place inside the SB) and that measurement confirms this.

OTOH various users have had quite different experiences - some swearing
that a linear supply makes a huge difference, others like yourself
hearing nothing.

The most likely hypothesis I've read is that the RFI thrown out by the
stock supply adversely affects some downstream devices badly, and that
this is fixed by a linear.  I can personally testify that changing to a
linear supply made a massive difference to the usability of a nearby
radio!!

So if the rest of your gear is more or less immune to the RF nasties,
changing the PS would have no effect.

Ceejay


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[SlimDevices: Audiophiles] Re: To DAC or not to DAC

2007-01-22 Thread ceejay

OK guys, can I respectfully suggest that we let this one drop?  The
last two pages of posts have created only heat, no light.

IMO.

Ceejay.


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[SlimDevices: Audiophiles] Re: New WIKI - Connecting SB3/Transporter directly to an Amplifier w/o Preamp

2007-01-19 Thread ceejay

Mark

nice work... I think the only point I'd want to debate is your
assumption that we don't need to cover the Transporter as their owners
are unlikely to be beginners: not beginners in audio, almost certainly,
but could easily be complete novices in slimserver or computer based
audio.

Ceejay


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[SlimDevices: Audiophiles] Re: New WIKI - Connecting SB3/Transporter directly to an Amplifier w/o Preamp

2007-01-18 Thread ceejay

Well the first page is the BeginnersGuide and it is meant to be just the
headlines with shortcuts to the pages with more info.  The
BeginnersGuideOverview goes into more detail and is intended to be
readable in its own right.

I did start to draft a paragraph to go in the Overview page but quickly
formed the view that actually we need a page along the lines of
BeginnersGuideToConnections, or similar, which could cover 

- what the analog and digital outputs are for and some of the
advantages of each (this comes up quite a lot in the Forums)

- connecting into a integrated audio amplifier

- connecting directly to a power amplifier (xref to poweramp page)

- connecting into an AV receiver (xref to AVReceivers page)

- connecting to a DAC

Then I'd have a short paragraph in the BeginnersGuideOverview page
along the lines of

you need to conenct the outputs of your Squeezebox to the inputs of
your audio amplifier in just the same way that you now would connect a
CD player. There are several advanced options, however, which are
discussed here. (link to new page)

Anyone feeling bold?

Ceejay


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[SlimDevices: Audiophiles] Re: Clicking before tracks and other teething problems

2007-01-17 Thread ceejay

Sounds to me like the issue is associated with the transcoding that
necessarily has to happen for an SB to play AAC files. I seem to recall
several people having problems with this on Linux systems.

This is made worse by the fact that you seem to have a system you can't
fix yourself, which means that you are going to have to get your QNAP
supplier to help you [personally I wouldn't go near such a situation
with a bargepole but each to his own...].

Sadly your best workaround in the short term is probably to try ripping
some CDs to FLAC, which should solve the problem. 

Incidentally, by default sending WAVs to the SB won't stop transcoding
taking place as FLAC is a preferred format over WAV: you'd need to
untick the WAV-FLAC box in file formats.

HTH
Ceejay


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[SlimDevices: Audiophiles] Re: SB to Power Amp ... Preamp or Attenuator or DontEvenTry?

2007-01-17 Thread ceejay

giga;171117 Wrote: 
 Thanks for the suggestion.
 So if I understand correctly volume control on the SB3 is digital only,
 meaning there is a fixed analog gain applied to a modulated digital
 source (out of the DAC) and for that reason any gain lower than 100%
 will result in quantization errors... right?

Not quite. See this thread
http://forums.slimdevices.com/showthread.php?t=28133 amongst others

Ceejay


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[SlimDevices: Audiophiles] Re: A Cut-Rate Audio phile’s Experience With a Linear Power Supply

2007-01-17 Thread ceejay

I don't think there is much doubt about the stock PSU's ability to spray
RFI about - it makes my Tivoli One radio, which I had hoped to use with
an SB2, completely unusable as a radio (whether there is an SB2 plugged
into it or not).  I now need to think about whether its worth while
finding a cheap linear supply which (hopefully) won't have the same
effect...

Ceejay


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[SlimDevices: Audiophiles] Re: Headphone amp for Transporter XLR connector ?

2007-01-16 Thread ceejay

magnanimous;170925 Wrote: 
 I think the problem would be that you cannot attenuate the XLR output,
 so you get no volume control even if you could connect the phones
 direct to the transporter.

Not quite. AFAIK the volume control works on all outputs including the
balanced - what you miss is the option to add fixed attenuation (10, 20
or 30dB).  So it would be ok as long as the output level from the TP
doesn't completely max out the amps input or otherwise be so high that
you end up running the TP well below max output.

Ceejay.


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[SlimDevices: Audiophiles] Re: Digital or Analog output?

2007-01-10 Thread ceejay

I have a Denon 2805.  In Direct or pure Direct mode, it really is
Analog all the way through (does NOT do A-D-A conversion), although it
does go digital in Stereo mode.

Personally I found it sounded significantly better using analog out
from the SB (I was using an SB2), even using not-terribly-expensive 
cable, ie I preferred the SB's DAC to the Denon.  YMMV.

YMMV
Ceejay


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[SlimDevices: Audiophiles] Re: Digital or Analog output?

2007-01-10 Thread ceejay

Mark Lanctot;169067 Wrote: 
 Ceejay: I'm curious how you know this.
 
 I'm not at all suggesting you're wrong, but I'd like to know how to
 determine this myself.  If you look at all the manufacturer literature,
 they'd have you believe every one of them with a bypass mode is pure
 analog bypass.  Yet the volume control always works in this mode, but
 most of these volume controls are encoders rather than potentiometers. 
 I'm not fully versed in electronics but I don't know how an encoder
 could be used in a fully-analog circuit for volume control.

Well, know is a strong word... I've not examined the circuits. But I
did search the internet extensively and found some statements that
seemed to be credible which stated this.  Interestingly in relation to
your earlier post about 2.1 vs 2.0 ... there was an additional claim
that in analog mode the processor actually switches to an analog method
for filtering and driving the subwoofer, so you could get 2.1.

There is of course a lingering doubt in my mind, which is perhaps one
reason why I've ditched the Denon 2805 as an amplifier for my
Transporter and gone for entirely separate 2ch/5.1ch setups!!

The only thing I can assert confidently is the entirely subjective
judgement that my SB2 sounded better driving the Denon in analog mode,
which I think was the original question!!!

As for the volume control, its surely not hard to construct an analog
electronic volume control which is driven by a digital control source
(I'm fairly sure I remember designing such a thing myself in the very
distant past!)(remember that its only the actual signal path that has
to be analog)

Ceejay


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[SlimDevices: Audiophiles] Re: SB sounding too bright

2007-01-08 Thread ceejay

stone;83083 Wrote: 
 
 Heres what i did:
 
 My SB came with a ferrite core (Euro 230V type power) at on the power
 cable (at the SB end). I connected another one; no detectible
 improvement to the brightness and high frequency ringing. 
 
 Then I attached two ferrites to the cable close to the power subbply
 itself. Now the SB is playing music! Can not believe the change. The
 setup still has a tendency toward details in the highs, but now it is
 musical. 
 
 What happened? Not shure but the power cord may have been acting as an
 rf antenna, or the power started behaving when the ferrites appeared.
 Any suggestions? 
 
 Enjoy,

I stumbled across this thread while looking for something quite
different, and connected it in my mind with a completely separate
problem I asked about elsewhere - how to stop the SB (more probably the
power supply) from making the FM section of a nearby Tivoli One
completely unusable.

So having read this I found a spare ferrite core and added it to the SB
power supply cable, at the PSU end.  Its made a big difference - still
not exactly usable, but enough to convince me that this is the way for
me to go, and to reinforce comments made here and elsewhere that the
stock switching PSU may be well rejected by the internal linear power
supplies in the SB but its playing havoc with other kit...


Ceejay


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[SlimDevices: Audiophiles] Re: Start Server via Transporter/Squeezbox using magic packet

2007-01-02 Thread ceejay

Plenty of threads on this, try this one for example...
http://forums.slimdevices.com/showthread.php?t=23400highlight=Wake+LAN%2A

HTH
Ceejay


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[SlimDevices: Audiophiles] Re: Better sound quality from flac's than CD's?

2007-01-02 Thread ceejay

There is more than one possible difference. Yes, the bits could be
different - though it isn't hugely likely and if the bits are bad
you're more likely to hear pops or crackles than a subtle loss of sound
quality, IMHO.

If you're comparing the SB with a CD player, both feeding the same DAC,
the topic to read up on is jitter - lots of discussion on that here.
It could well be that the CD player is injecting more jitter into the
bit stream to the DAC, and if the DAC isn't good at rejecting it (some
are better than others, it seems) you will hear a quality difference.

Ceejay


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[SlimDevices: Audiophiles] Re: FLAC signal levels

2006-12-28 Thread ceejay

slimkid;165411 Wrote: 
 
 
 What various replaygains do is dynamycally equalize those tracks to
 what is considered (by the programmer) reasonable dynamic range. So it
 would silence pieces of the the first mevement and enhance some pieces
 on the second one, just like you would do taking the wolume down when
 it feels too loud and then back up again when you can't hear it.
 
 

I think you are being a bit harsh on all replaygain techniques here. 
First, adding a replaygain tag to a file doesn't lose any information at
all, you can choose whether to apply it or not at play time. Second,
they don't twiddle the volume at all within a track (which would be
most annoying) or (I'm not sure whether you think this or not) apply
any compression.  And if you apply albumgain then the same volume
adjustment will be made equally to all tracks/movements, so there is no
question of overriding Mr Karajan or his colleagues.

I'm not saying, BTW, that all gain adjustment techniques are without
any of these problems - merely that it is quite possible to get volume
normalisation without messing with the music...

YMMV

Ceejay


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[SlimDevices: Audiophiles] Re: Problem with Slim Server

2006-12-28 Thread ceejay

lafayette;165439 Wrote: 
 
 
 But, alas, I looked you up.  If there is a flame war, you're in it. 
 You have a clear history of attacking strangers, throwing out ad
 hominem and very personal insults, and otherwise being a punk with few
 social skills.  You curse, too, openly and rudely, and that says a
 great deal about your character (along with your ignorance and
 arrogance, of course).  How does it feel to get it back in your face? 
 Of course, you are probably too stubborn to notice.  How you
 demonstrated your lack of knowledge on this thread, though, tickles me.

Pot, meet Kettle 

Any chance of a debate about sound stages, or any similar topic,
without all this stuff?

Thanks
Ceejay


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[SlimDevices: Audiophiles] Re: Problem with Slim Server

2006-12-25 Thread ceejay

lafayette;164745 Wrote: 
 I thought this was cute -- private mail from Radish
 
 Mods in this forum don't wear badges. You're new here, it's a nice
 friendly place but don't take that to mean it's OK to talk back to
 other members. If someone tells you your post is inappropriate, take
 note.
 
 Is such high-handed posturing and threatening -- when there seem to be
 so many unmoderated flame wars on this forum -- even, well, whatever. 
 It's just silly.

Lafayette,

Check out the number of posts from Radish, and compare with the number
of posts from yourself.  You're new here, and we're trying to be
understanding while you get the hang of this new place.  As it happens,
I think that the Slim Forums are one of the best behaved places on the
internet (although the audiophile section where we are now is perhaps a
bit wild sometimes).

Radish was, quite correctly, pointing out that your query would more
appropriately have been posted in another forum.  Please don't get the
hump at this.

In the meantime, chill, enjoy your new toy, and have a merry
Christmas.

Ceejay.


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[SlimDevices: Audiophiles] Re: HiFi System needed to show difference: SB3, TP

2006-12-15 Thread ceejay

Impeller;162587 Wrote: 
 
 So I've been hoodwinked by popular media?
 
 Still, at least at least it shouldn't adversely affect anything. I'm
 just about to go and have a listen at more normal volume levels now
 that the family isn't in bed.

No, you've not been hoodwinked.  Just be clear about the difference
between bi-amping (two separate amps driving) and bi-wiring.

Bi-wiring gets you certain benefits precisely because our conductors
are not perfect.  Whether they make an audible difference is up to you.
The cost is usually moderate.

Bi-amping gets you those benefits plus some more besides, at higher
cost.

You pays your money..

Ceejay


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[SlimDevices: Audiophiles] Re: SB3 plus DAC vs Transporter with or without DAC

2006-12-14 Thread ceejay

crooner;162284 Wrote: 
 
 Right now I am getting fantastic sound out of my SB3+DAC combo. But
 given the quality of the rest of my equipment, would it be worthwile to
 upgrade to a transporter? If so, I would have little need to keep the
 Lite Audio DAC.

I have no idea whether a TP would sound better, and I suspect no-one
else will know either. 

However I will offer a friendly warning that you may be entering the
dark world of never-ending upgrade-itis ... if your current setup
sounds fantastic to you, why change it? You're scratching an itch you
haven't got, which always seems like a bad idea to me...

YMMV
Ceejay


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[SlimDevices: Audiophiles] Re: WMA lossless vs EAC

2006-12-07 Thread ceejay

Some sensible proposals from the lawmakers in the UK, at least...

The law will also be amended so that consumers can legitimately
transfer music for their own use, for example from a CD they have
bought to an MP3 player.

http://business.guardian.co.uk/prebudgetreport2006/story/0,,1966201,00.html

Ceejay


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[SlimDevices: Audiophiles] Re: Analog volume using Transporter

2006-12-06 Thread ceejay

jmourik;160036 Wrote: 
 The typical advice around here for the SB2/3 is to max out the SB volume
 and use the integrated amp for volume control. My guess is the same goes
 for the transporter...
 
 jan

True, but with the qualification that you should listen out for
distortion being introduced by overloading the amplifier inputs, the SB
and TP can sometimes overdo it for more sensitive amps.

Ceejay


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[SlimDevices: Audiophiles] Re: How do I stop my Transporter from trying to connect to Slimserver when PC is off?

2006-12-05 Thread ceejay

Post a bug on bugzilla?  If you want something changed, that's the place
to put it...

Ceejay


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[SlimDevices: Audiophiles] Re: 256 kBits vs. Flac

2006-12-03 Thread ceejay

Two contradictory ideas from me:

1 - listen for yourself! As Diana says, complex music rather than heavy
rock is most likely to show up the difference. If you can't hear a
difference, there isn't one.

2 - If you can't hear a difference (or not enough of one to justify
re-ripping all your CDs) then consider that this might be because your
current setup is masking the subtleties (this is a polite way of saying
not good enough!). And if, some time in the future, you find yourself
with better kit that really does show the difference then you will kick
yourself.

One compromise strategy is to resolve to rip all new purchases in some
lossless format (it doesn't matter which, you can always transcode
later) and come back to your legacy music later if you need to.

Ceejay


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[SlimDevices: Audiophiles] Re: HiFi System needed to show difference: SB3, TP

2006-11-29 Thread ceejay

Impeller;158351 Wrote: 
 (some of which are, again, over our budget, but hey... I can always say
 'no'. Right?).
 
 

Have fun.  But keep a tight hold on your credit card: going into an
expensive toyshop can be bad for your wealth! Ever been to a timeshare
presentation? ;)

Ceejay


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[SlimDevices: Audiophiles] Re: HiFi System needed to show difference: SB3, TP

2006-11-27 Thread ceejay

I think this thread may have just broken the record for longest thread
without any disagreement on this forum... ;)

Ceejay


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[SlimDevices: Audiophiles] Re: There must be a better way for this forum to operate.

2006-11-26 Thread ceejay

totoro;157653 Wrote: 
 
 
 Splitting some threads/subthreads off into a garbage can or fight club
 wouldn't be unreasonable. 
 
 

Funny, I thought that's what this entire forum is for?

Ceejay


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[SlimDevices: Audiophiles] Re: Equipment advice please

2006-11-16 Thread ceejay

You should certainly be able to get something good for that - eg
£600-£800 for speakers, £300 for an amp and £100 for connects.  Its
fair to say that you could spend more and get something that sounds
better, but that depends on how much money you've got and how important
it is to you!

Ceejay


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[SlimDevices: Audiophiles] Re: Active Speakers for Conservatory

2006-11-15 Thread ceejay

Definitely no gravel floors here...

http://www.conservatoryinfo.co.uk/

Ceejay


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[SlimDevices: Audiophiles] Re: IR problems on Transporter

2006-11-14 Thread ceejay

Now what would be really impressive would be to mount a mirror on one or
both of the scalectrix cars and then, as they go round the track, choose
your moment to zap the remote...

Although, all this discussion of mirrors has got me worried - wouldn't
the bits come out the wrong way round?

Ceejay


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[SlimDevices: Audiophiles] Re: .ape file format

2006-11-13 Thread ceejay

Yes - this format is transcoded server-side to a format the Transporter
can handle directly (such as FLAC).  If you want to try it out with
your files, download the slimserver software and also install the
softsqueeze software emulator that comes with it. You'll be able to
test out how it works (though not of course feel the heat of the
transporter's electronics!)

Ceejay


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[SlimDevices: Audiophiles] Re: Really wierd squeezebox problem

2006-11-12 Thread ceejay

What happens if both the SBs are in the same room and powered from the
same socket?  Is it perhaps the case that the two rooms are on
different power circuits (possibly even different phases?) and that the
two circuits have a large ground offset?

Ceejay


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