Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 2.0

2011-02-24 Thread Mnyb

magiccarpetride;612879 Wrote: 
> But the problem is I occasionally hear differences when blind even if
> everything else remains the same. Besides, there is no way that we can
> reliably measure the exact scope, quality and quantity of the sound
> waves arriving at one's ears.
> 
> Pretending that we already know all there is to know about the
> phenomenon of experiencing music is extremely foolish. In addition to
> that, pretending that it is possible to achieve consistency when
> testing component blindly is another superstitious pile of baloney.

But whe can reliably measure electrical signals, you only need to to do
that.
" the phenomen of experiencing music" does not need to be involved.
You only have to detect if there is a difference not try to measure "
musical quality ".

It's even more impossible to test thing's unblinded. You can not solve
the problems of blind testing by reintroducing the much much bigger
problems it solved.

Blind testing itself does not solve the problem of unrilable human
perception, it the statistical methods used after the test.

You can think like this , it quite possible that for some stimuli a
bunch of people can be intirely correct about something, but you cant "
know " that. To " know " you have To subjekt them or a similar group to
a test for example giving them the placebo medicine or what ever, oops
it starts to look like blind test.

It's not about rigth and wrong it's about knowing or not knowing.
Without quantifiable test you never know you can have loads of very
plausible hypothesises but you don't know.

Next hurdle is to blind the tester himself the" double blind" this hard
to do, some researchers relly want their favorite theory to be rigth and
thus twarts the experiments  not deliberatly, but these things tend to
be self fullfilling, so errors does not always emerge from the
testsubjekts.

It is superstituos baloney that blind testing does not work, often
spread by people whos " religion " is in perill regarding shakti stones
fancy cables and cones and other nonsense


-- 
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Re: [SlimDevices: Audiophiles] Is Apple Going 24 Bit?

2011-02-24 Thread Mnyb

magiccarpetride;613594 Wrote: 
> The most idiotic irony is that anything that gets recorded today is by
> default recorded using 24 bit depth. What record companies do then is
> mix and master these recordings by dithering them down to 16 bit for
> mass distribution.
> 
> What's happening right now is that the same companies seem to be going
> back to their already crippled 16 bit material and upsampling it, with
> a mindless push of a button, to 24 bit. Then they turn around and
> charge their consumers premium price for that cheap-and-dirty magic
> trick.
> 
> Appalling!

Wonder if not 30% of DVDA and 50% SACD is fakes in this repect ?

I think SACD has more fakes due to higher title count as the morons
runed out of real 24 bit records.

I would not be surprised at all if some of these records are faked this
way even if there is a real 24 bit master somewhere.


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Re: [SlimDevices: Audiophiles] Digital vs. Analog (again)

2011-02-24 Thread Mnyb

Yep reel to reel tape was better than vinyl ( quite obvius as the
masters tapes themselfes where on this format)
But no comercially viable way off massproducing these very ever lauched
? So more of less a format for the recording enthusiast.

With a good tape deck you could do half decent recordings, not
fantastic.

But the real horror of the cassete was the massproduced albums on it ?
And that cassets are rather fragile and deterioate quickly, leave them
in you car and they die.
A well preserved LP last, bu an old cassete don't they get worse with
time.

Seen with todays hindsigth, it clearly was not a consumer ready medium,
it was very easy to get wrong for numerous reasons.
99% off people could not use it properly when making recordings and no
affordable tape deck could ever use it's full potential.

As a teenager i tried to make my tapes as good as i could, that meant
abusing SR ( sveriges radio , swedish public service radio ) resources,
where my dad once was a sound engineer.
So their workshop adjusted azimuth on it's heads and all kinds off
stuff, believe me a tape machine has a lot off settings, they had
reference tapes for this purpose ?

So most people had tape decks that where not properly adjusted ( maybe
they where when they where new ) and they never cleaned the head's or
other parts of or used a defluxer to demagnetise it' now and 
then. And then cheerfully recorded with to high levels far beyond what
the tape or frankly what the tape deck could handle, in it's last years
the cassetes themselfs where " better " than the normal consumer tape
deck.

Anyone remembered what happened when you used dolby and tried to play
the tape on another tape deck ? Due differently adjusted azimuth all
treble died .

And as far as i rember some good decks could have decent frequency
response, but it varied with the recording level, as if not wow flutter
distorsion ( magnetic saturation) and hiss was enough, combine this 
with dolby ?

God ridance with that, nostalgia is powerfull people don't remeber how
bad it really was.
That goes for vinyl to I think most audiophiles have selectively
forgotten how bad a " typical " turntable was, they where very bad. So
most normal folks actually got what phillips promised from day one with

CD ( relative to what they where used to have ).

Another fun trivia, as far as i rember LP always sold more than cassete
in Sweden.
But in US cassete sold more than LP .

Next super 8 film ;) if home video tapes does not s*ck enough for you.


-- 
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[SlimDevices: Audiophiles] Is Steve Guttenberg a genius?

2011-02-24 Thread Henry66

Take a look at one of his recent blog posts: 'Teenage audiophiles speak
out'
(http://news.cnet.com/8301-13645_3-20033297-47.html?tag=mncol;title)

So maybe Steve can't wrap his brain around the subtleties of binary
encoding/decoding, but his effort to recruit or engage the young is
attacking the problem of bad sound at its very core. My hat off to you
Mr. Guttenberg.


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Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 2.0

2011-02-24 Thread m1abrams

Squeezeboxes have all used tcp since the sb1.  The first device the
slimp3 did use udp.


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Re: [SlimDevices: Audiophiles] Quality of digital outs from the Squeezebox

2011-02-24 Thread JezA

John - thanks. You mention that if a 'one-box' solution is done right,
the results are spectacular. Mind me asking who in your opinion has
done it right? Or the least wrong?


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Re: [SlimDevices: Audiophiles] Digital vs. Analog (again)

2011-02-24 Thread ralphpnj

earwaxer9;613612 Wrote: 
> I can remember a recording to reel to reel tape sounding very good! Mid
> 70's system. A simple home made LP to tape recording. A friend in
> college had the system. Cant remember the brand of the dec. I was
> skeptical at first to tape transfers. I really didnt want to like it.
> So much for that. I didnt bite though. Dealing with tape seemed like
> WAY too much of a hassle.


Reel to reel is quite a bit better than cassette and all analog masters
are on reel to reel tape. Two track, single direction 1/2" tape at 30
inches per second is not the same as two track, bidirectional (meaning
4 tracks) 1/8" tape at 1-7/8 inches per second. I should note that
consumer reel to reel was/is 1/4" tape running at either 7-1/2 or 3-3/4
inches per second, which is still a world away from the cassette.


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Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 2.0

2011-02-24 Thread zzzap

Do we all agree that the TCP transport is lossless?
If we do, what factors can we then try to agree on could influence
differences some members have experienced fiddling with the network? 

- First. I've not seen any information that the Touch actually use TCP.
Are we certain the stream is not UDP ? 
- Are there different streaming models for different platforms ?
- For cabled network RFI can be an issue ?   
- Ground loops with poorly build switches ?
- Knowledge of Touch internal network adapter and native comparability
might reduce CPU stress if it's possible to optimize network
architecture to fit ?

Others, or some we should take out?


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Re: [SlimDevices: Audiophiles] Digital vs. Analog (again)

2011-02-24 Thread magiccarpetride

earwaxer9;613612 Wrote: 
> I can remember a recording to reel to reel tape sounding very good! Mid
> 70's system. A simple home made LP to tape recording. A friend in
> college had the system. Cant remember the brand of the dec. I was
> skeptical at first to tape transfers. I really didnt want to like it.
> So much for that. I didnt bite though. Dealing with tape seemed like
> WAY too much of a hassle.

Reel-to-reel tape: yes! Cassette: no!


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Re: [SlimDevices: Audiophiles] Digital vs. Analog (again)

2011-02-24 Thread earwaxer9

magiccarpetride;612818 Wrote: 
> Believe it or not, I've seen a magazine purporting the comeback of the
> cassette!

I can remember a recording to reel to reel tape sounding very good! Mid
70's system. A simple home made LP to tape recording. A friend in
college had the system. Cant remember the brand of the dec. I was
skeptical at first to tape transfers. I really didnt want to like it.
So much for that. I didnt bite though. Dealing with tape seemed like
WAY too much of a hassle.


-- 
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System: modified Winsome Labs Mouse, modified Maggie MMG's, Transporter,
HSU sub 12, MSB DAC to 500 watt sub slave amp, JPS labs power cords,
Silver audio interconnect, Audioquest Granite speaker cable.

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Re: [SlimDevices: Audiophiles] Worst sounding album in your collection

2011-02-24 Thread darrenyeats

magiccarpetride;613593 Wrote: 
> good question. My example (weather report "mr. Gone") miraculously
> covers both -- it is the worst sounding music in my collection, and
> also the worst sounding recording in my collection.
> 
> For the purposes of this thread, let's mostly try to focus on the worst
> sounding recording, even if the recorded music is brilliant. I realize
> that it's much harder to top "mr. Gone" and find an album that is
> equally atrocious in both areas.
lol.


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Re: [SlimDevices: Audiophiles] Clock Injection, Sampling frequency recognition

2011-02-24 Thread JohnSwenson

omainik;613254 Wrote: 
> Is there an easy way to recognize the sampling frequency of the played
> stream?
> 
> I would build a dac with two clocks. Both clocks are injected to the
> squeezebox touch. For the division for BCK and WS the right clock and
> multiplier are selected. DATA line is transferred through a spdif
> receiver. 
> 
> I think John Swenson wrote somewhere about decoding spdif stream for
> such a reason.
> 
> any ideas?
> 
> Peter

What I do is take the word clock from the S/PDIF receiver and use it to
start a counter which is getting clocked from one of the fixed clocks.
At the end of the word clock I then compare the number comming out of
the counter, I check ranges, if its greater then this number and less
than that number the sample rate 44.1, if its between a differfent set
of numbers its 48 etc.  

I implement this in an FPGA because I'm doing practically everything in
one so its already there. If you don't have an FPGA you could implement
it in a CPLD or a small processor like a PIC. 

John S.


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Re: [SlimDevices: Audiophiles] Is Apple Going 24 Bit?

2011-02-24 Thread ralphpnj

magiccarpetride;613594 Wrote: 
> The most idiotic irony is that anything that gets recorded today is by
> default recorded using 24 bit depth. What record companies do then is
> mix and master these recordings by dithering them down to 16 bit for
> mass distribution.
> 
> What's happening right now is that the same companies seem to be going
> back to their already crippled 16 bit material and upsampling it, with
> a mindless push of a button, to 24 bit. Then they turn around and
> charge their consumers premium price for that cheap-and-dirty magic
> trick.
> 
> Appalling!

You've right - the move to high resolution can be a mixed blessing
since many recordings from the early days of digital recording were
made at either 16 or 20 bit and not 24 bit. Luckily that was the early
to mid 1980s and who needs or even wants a high resolution Duran Duran
recording?


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Re: [SlimDevices: Audiophiles] Worst sounding album in your collection

2011-02-24 Thread ralphpnj

magiccarpetride;613593 Wrote: 
> Good question. My example (Weather Report "Mr. Gone") miraculously
> covers both -- it is the worst sounding music in my collection, and
> also the worst sounding recording in my collection.
> 
> For the purposes of this thread, let's mostly try to focus on the worst
> sounding recording, even if the recorded music is brilliant. I realize
> that it's much harder to top "Mr. Gone" and find an album that is
> equally atrocious in both areas.

I have lots and lots of truly great and timeless which by today's
standards are terrible sounding recordings but at the time of their
recording were not particularly bad sounding. I'm speaking of many of
the early jazz recordings such as Louis Armstrong and the Hot Five,
several of which were acoustically recorded, as in directly to a wax
cylinder without any electronics involved. There is no bass, okay mid
range and rather tin sounding high end but the music is outstanding.

Many, if not most, modern popular music recordings suffer from two
sound killing techniques. First and foremost there is the use of
dynamic range compression, aka the Loudness War, which make the
recordings sound decent on crappy computer speakers and bad car stereos
but horrible on almost anything else. Second there is over use of
multi-track recording so that final recording has no spacial
information and usually sound better in the next room where the all the
separate tracks have had a chance to blend together. An example of this
would be either of Elvis Costello's first two Warner Bros. recordings,
"Spike" and "Mighty Like A Rose" - proudly touted as be recorded in
several places and sounding like it.


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Re: [SlimDevices: Audiophiles] Is Apple Going 24 Bit?

2011-02-24 Thread magiccarpetride

ralphpnj;613582 Wrote: 
> Reading through the referenced article I found that they seem to be
> confusing a lossy compressed file with a higher bit rate (think 24bit
> mp3 file) with a losslessly compressed file but with a lower bit rate
> (think 16bit flac file).
> 
> I would much rather have a 16bit flac than a 24bit mp3.
> 
> And why would one think that any record company executive knows even
> the slightest bit about computer and digital audio? All the record
> companies have done over the past 5 years is find new and better way to
> go bankrupt. No they are not "geniuses" as stated in the article but
> rather they are for the most part complete morons. The Apple iTunes
> store has eaten their lunch.

The most idiotic irony is that anything that gets recorded today is by
default recorded using 24 bit depth. What record companies do then is
mix and master these recordings by dithering them down to 16 bit for
mass distribution.

What's happening right now is that the same companies seem to be going
back to their already crippled 16 bit material and upsampling it, with
a mindless push of a button, to 24 bit. Then they turn around and
charge the consumer premium price for that cheap-and-dirty magic
trick.

Appalling!


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Re: [SlimDevices: Audiophiles] Worst sounding album in your collection

2011-02-24 Thread magiccarpetride

ralphpnj;613573 Wrote: 
> Before I answer I would like some clarification:
> 
> Do you mean the worst sounding recording or the worst sounding music?
> To some this may appear to be a minor difference but for me this is a
> major difference. TIA!

Good question. My example (Weather Report "Mr. Gone") miraculously
covers both -- it is the worst sounding music in my collection, and
also the worst sounding recording in my collection.

For the purposes of this thread, let's mostly try to focus on the worst
sounding recording, even if the recorded music is brilliant. I realize
that it's much harder to top "Mr. Gone" and find an album that is
equally atrocious in both areas.


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Re: [SlimDevices: Audiophiles] Quality of digital outs from the Squeezebox

2011-02-24 Thread Deaf Cat

Interesting reading,
cheers John :-)


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Re: [SlimDevices: Audiophiles] Is Apple Going 24 Bit?

2011-02-24 Thread ralphpnj

Reading through the referenced article I found that they seem to be
confusing a lossy compressed file with a higher bit rate (think 24bit
mp3 file) with a losslessly compressed file but with a lower bit rate
(think 16bit flac file).

I would much rather have a 16bit flac than a 24bit mp3.

And why would one think that any record company executive knows even
the slightest bit about computer and digital audio? All the record
companies have done over the past 5 years is find new and better way to
go bankrupt. No they are not "geniuses" as stated in the article but
rather they are for the most part complete morons. The Apple iTunes
store has eaten their lunch.


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Re: [SlimDevices: Audiophiles] Will Logitech Revue Google TV wipe out Squeezebox?

2011-02-24 Thread ralphpnj

Apparently there seems to be lots of confusion about what UPnP means and
I count myself among those who are confused.

>From what I can gather a UPnP device is either a client or a server. In
the case of the Squeezebox devices, the Squeezebox is a client and the
computer running SBS is the server. The main difference between the
Squeezebox devices and many other UPnP devices is that while the
Squeezebox device is a client because it's ability to communicate with
SBS one has the ability to control the device using a remote. I've
never seen a clear explanation of exactly how other UPnP are
controlled. Again my understanding is that many of these devices are
controlled via software on the server and in the case of music the most
common software used to control the device is iTunes and that must be
controlled at the server.

If I have anything wrong please feel free to correct and educate me
since I'm often puzzled as to why these very "dumb" UPnP clients are
being so highly touted.

For point of reference I have a WD Live Plus box connected to my HDTV
which I use to stream movies. While the device can play music files it
does not have a good way to find what music is on the server and
whatever method it uses is nowhere near as good or as useful as SBS.
And one does need the TV to be on to select music.


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Re: [SlimDevices: Audiophiles] Quality of digital outs from the Squeezebox

2011-02-24 Thread JohnSwenson

JezA;613469 Wrote: 
> Interesting stuff John.
> 
> A key question to me is: Which system architecture offers the best
> prospects - a renderer feeding an external DAC via USB or s/pdif, or a
> 'one-box' network player. With a network player the processor and
> network stuff must have an influence on the ground plane which will
> influence the DAC, as it's in the same box; you can lose that problem
> by putting the DAC in another box, but then as you point out, you get
> issues from the USB or s/pdif connection. So, which way of doing it is
> better in principle?

Theoretically the single box solution is best, BUT you can't cut any
corners. You need to use separate power supplies (and I mean completely
separate supplies, separate transformers, recitifers, regulators etc),
isolate the DAC side from the digital side, put the DAC and digital
stuff in separate shielded sections of the box and use those previously
mentioned ground management techniques. IF you do all this the results
are spectacular. But the temptation is severe to compromise, in
particular its MUCH cheaper to only us one power supply, but then no
matter what you do the grounds are connected together and you will get
bleed through from the relatively large ground noise on the digital
side into the analog side. 

The upshot is that pretty much anything you buy on the market today is
a compromise of one sort or another. The trick is finding the
compromise that YOU like the best!

There are several well known DACs that tout their jitter immunity, this
is achieved by using real jitter reduction techniques, but because of
poor power supply design and poor parts selection they really are NOT
low jitter. Yes they are fairly imune to input jitter, BUT thats
because the intrinsic internal jitter is so high it swamps anything
coming from the input. The marketing departments love to show off their
lowered input sensitivity, but thats only because they have high jitter
to begin with, they never talk about THAT!

John S.


-- 
JohnSwenson

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Re: [SlimDevices: Audiophiles] Worst sounding album in your collection

2011-02-24 Thread Mnyb

"You lucky lucky bastards" :-) Nothing worse than this yet...
For old heavy metal fans try dio " holy diver" or any black sabbath.
Or cure ? Or  "Sisters of mercy" they excell in truly horrible
recordings.


-- 
Mnyb


Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH 2 x
MeridianDSP5200 MeridianDSP5200HC 2 xMeridianDSP3100 +Rel Stadium 3
sub.
Bedroom/Office: Boom
Kitchen: SB3 + powered Fostex PM0.4
Misc use: Radio (with battery)
iPad 64gB wifi +3g with iPengHD & SqueezePad

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Re: [SlimDevices: Audiophiles] Worst sounding album in your collection

2011-02-24 Thread ralphpnj

Before I answer I would like some clarification:

Do you mean the worst sounding recording or the worst sounding music?
To some this may appear to be a minor difference but for me this is a
major difference. TIA!


-- 
ralphpnj

Lock, Stock and Two Smoking Barrels -> Snatch -> The Transporter ->
Transporter 2 (oops) -> Touch

'Last.fm' (http://www.last.fm/user/jazzfann/)

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Re: [SlimDevices: Audiophiles] Quality of digital outs from the Squeezebox

2011-02-24 Thread m1abrams

stop-spinning;613558 Wrote: 
> While you are awaiting an answer to your question - I sorta like the
> idea of running Squeezeplay from a Computer - what would be nice to
> know about Squeezeplay however, is if you can still use Squeeze
> Commander on Android phones as your remote control - because I like
> that functionality?

Yes

Downside with using squeezeplay is the player syncing does not work as
well as it does between just hw players.


-- 
m1abrams



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Re: [SlimDevices: Audiophiles] Quality of digital outs from the Squeezebox

2011-02-24 Thread stop-spinning

JezA;613229 Wrote: 
> ... you could put Squeezeplay on it and turn it into a Touch
> replacement.

While you are awaiting an answer to your question - I sorta like the
idea of running Squeezeplay from a Computer - what would be nice to
know about Squeezeplay however, is if you can still use Squeeze
Commander on Android phones as your remote control - because I like
that functionality?


-- 
stop-spinning

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Re: [SlimDevices: Audiophiles] Worst sounding album in your collection

2011-02-24 Thread Wombat

Soulkeeper;613480 Wrote: 
> My CD version of -Brothers in Arms- (Dire Straits) is pretty horrible.
> The drums sound like something from an overdriven 1980 PC speaker (the
> small speaker located inside the PC cabinet, not the attachable stuff
> that is audiophile in comparison).

You may have one of the rare versions with pre-emphasis and didnĀ“t
apply de-emphasis. Must sound horrible then indeed.


-- 
Wombat

Transporter (modded) -> RG142 -> Avantgarde Acoustic based 500VA
monoblocks -> Sommer SPK240 -> self-made speakers

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Re: [SlimDevices: Audiophiles] Worst sounding album in your collection

2011-02-24 Thread Phil Leigh

Soulkeeper;613480 Wrote: 
> My CD version of -Brothers in Arms- (Dire Straits) is pretty horrible.
> The drums sound like something from an overdriven 1980 PC speaker (the
> small speaker located inside the PC cabinet, not the attachable stuff
> that is audiophile in comparison).

The DVD-A version sounds great :-)


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...
Touch(wired/XP) - Audiolense 3.3/2.0+INGUZ DRC - MF
x-dacv3/x-10/x-psu(Audiocom full mods) - Linn 5103 - full Aktiv 5.1
system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Pekin Tuner,
Townsend Supertweeters, Blue Jeans Belden Digital,Kimber 8TC Speaker &
Chord Signature Plus Interconnect cables
Stax4070+SRM7/II phones
Kitchen Boom, Outdoors: SB Radio, Harmony One remote for everything.

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Re: [SlimDevices: Audiophiles] Worst sounding album in your collection

2011-02-24 Thread Soulkeeper

My CD version of -Brothers in Arms- (Dire Straits) is pretty horrible.
The drums sound like something from an overdriven 1980 PC speaker (the
small speaker located inside the PC cabinet, not the attachable stuff
that is audiophile in comparison).


-- 
Soulkeeper

-that is not dead which can eternal lie. and with strange aeons even
death may die.-
touch + duet + boom + radio / wrt160n/dd-wrt / sbs 7.5.1 or
higher/win7(32b)/avira free

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Re: [SlimDevices: Audiophiles] Quality of digital outs from the Squeezebox

2011-02-24 Thread JezA

Interesting stuff John.

A key question to me is: Which system architecture offers the best
prospects - a renderer feeding an external DAC via USB or s/pdif, or a
'one-box' network player. With a network player the processor and
network stuff must have an influence on the ground plane which will
influence the DAC, as it's in the same box; you can lose that problem
by putting the DAC in another box, but then as you point out, you get
issues from the USB or s/pdif connection. So, which way of doing it is
better in principle?


-- 
JezA

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Re: [SlimDevices: Audiophiles] Worst sounding album in your collection

2011-02-24 Thread Rodney_Gold

A cheap Cd of the original Mary poppins soundtrack , Pretty sure it was
recorded off an a lousy record player playing thru lousy speakers -
pops , crackles , hiss etc - really bad!!!


-- 
Rodney_Gold

TP/Z-sys RDP1 digital Pre/Meridian DSP5500's Or TP/DSP5500's
Touch/Emotiva X-DA1 dac/ATC SCM 50a's
SB3/Meridian DSP5000's
TP/ GerdDAC or various other DAC's/Woo Audio Wa2 Headphone
amp/Sehneisser Hd800's
Touch/KrK Ergo/KrK VXT8 actives + 10S sub

"The nicest thing about smacking your head against the wall is...the
feeling you get when you stop"

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