Re: [SlimDevices: Audiophiles] Bedrom headphones system

2010-01-01 Thread Uluen

I have a Beresford TC-7520 DAC and the headamp in it drives my AKG K701
pretty good. Might be something to try.


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SYSTEM: MUSIC - EARS
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Re: [SlimDevices: Audiophiles] Sound quality between wav and flac

2010-01-01 Thread Stratmangler

Daverz;500974 Wrote: 
 Why are you taking the time to yell at us?  We are only audiophiles, for
 FSM sake!

The thread has gone on for nearly 2 months now, and just keeps going
round in circles. And it goes round in circles for the same reason -
someone makes a claim and then fails to provide any proof. Any evidence
provided by other forum members that is contrary to the claim is
ignored.   

Daverz;500974 Wrote: 
 Why does it bother you that some folks may not be entirely happy with
 the sound from their Squeezeboxen?

It doesn't bother me. I use an external DAC on my SB3. So as you see,
I'm not entirely happy with my Squeezebox's sound. I am happy with the
DAC in tow.

Daverz;500974 Wrote: 
 Perhaps you are too emotionally invested in these little black boxes.

Nope - although I still think they're a great way to play my digital
music collection.

Daverz;500974 Wrote: 
 Joking aside, and however skeptical I am, it does bother me a that there
 -might- be some real effect here that is degrading sound quality.  I
 believe that a decent DAC should only care that the bits are delivered
 to it in order and in a timely fashion, and audiophile fussing about
 this annoys me, but I don't know enough to be able to dismiss the
 paranoia completely.

Audiophile fussing got to me, as you're aware.

I've had similar concerns once before - I went from one version of
server to another, and the sound quality went from excellent to
dreadful. I also posted on this section of the forum to see if anyone
else had experienced the same issues.

My problems were sorted out by an uninstal, registry cleanup, and
totally clean reinstal.

Since then I've not encountered any problems or noticed any audible
differences when switching from one version to another.

I also cannot hear any differences between wav and flac files. I have
played around unpacking flacs to wavs and packing wavs up to flacs and
listening to them - I'm buggered if I can detect any differences.

So I fall into the very contented camp.

Anyway, that's enough of this; may I take this opportunity to wish you
all a very Happy New Year.

Chris:)


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Re: [SlimDevices: Audiophiles] Sound quality between wav and flac

2010-01-01 Thread marcoc1712

Stratmangler;501026 Wrote: 
 The thread has gone on for nearly 2 months now, and just keeps going
 round in circles. And it goes round in circles for the same reason -
 someone makes a claim and then fails to provide any proof. Any evidence
 provided by other forum members that is contrary to the claim is
 ignored.  

I do provide the proof, as I could, they ask me a DBT I did, I could
not provide any other proof. If You don't trust me, sorry, I've no way
to convince you, and realy I'm  not intrested in.

All the other evidence provvided - indeed are useful and sometime very
intresting, i..e the one Phil gave to me, ARE NOT definitive at all.

I agree it should be not like that, that is unlikely, that many people
could not ear any difference and so on, but those are definetly no proof
at all that I (and few others) could ear it.

Sorry about that, but logic has it's own roles...

So, please, moderate yourself, I don't need your apreciation, but I've 
never autorized you to shame me this way.

p.s. What about fly a Kite...?

Have a good - and cool - 2010.

Marco


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SB+, Klimo Merlino + Kent Gold, Monitor Audio Studio 20 Gold SE+, Klimo
reference and DIS Interconnect.

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Re: [SlimDevices: Audiophiles] Half speed master vinyl

2010-01-01 Thread rgheck

For what it's worth, I don't even find it that distracting, unless the
noise level is really high. Analog noise is generally easy to ignore. 

Maybe that's because I'm so used to vinyl, which is what I listen to
most of the time. I'd MUCH rather listen to an original pressing of some
old jazz album, with even a good deal of surface noise, than listen to a
pristine recent pressing. You just lose so much resolution due to tape
age.


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SqueezeboxServer on a 350MHz Pentium II running Centos 5.x with 1.5TB
Transporter -- Adcom GDA-600 -- Pass Labs B1 (DIY) -- Adcom GFA-5800
-- Thiel CS 1.6s
Transporter -- Pass Labs D1 -- Pass Labs Aleph 2s -- Thiel CS 1.6s

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Re: [SlimDevices: Audiophiles] Sound quality between wav and flac

2010-01-01 Thread rgheck

deadushka;500764 Wrote: 
 To Marco
 
 I'll describe the whole chain of upgrades.
 
 1) SqueezeBox (the one that looks like the bedside clock) - analogue
 output directly into Parasound A21 power amp + a pair of NHT 2.5i. 
 Can't recall what version of server was running.
 
 The sound - racey, dynamic, untidy. Best suited for the likes of
 AC/DC.
 
 2) SqueezeBox - Audio Alchemy DAC-in-the-Box + Power Station -
 Parasound A21 power amp + a pair of NHT 2.5i. Can't recall what version
 of server was running.
 
 The sound - racey, dynamic. A definite improvement, more accurate
 sound, but the general character of sound is the same as in previous
 setup. Reminds of analogue gear.
 
 3) Duet - Audio Alchemy DAC-in-the-Box + Power Station - Parasound
 A21 power amp + a pair of NHT 2.5i. Can't recall what version of server
 was running because I didn't realize that was important.
 
 The sound - totally different from previous setup (to my surprise,
 because I bought it because of the controller). It's like you've made
 $10K upgrade. I've heard a very similar sound from a system costing in
 excess of $25K (VTL tube monoblocks + Vandersteen 3ce + Esoteric CD +
 DAC) only mine had a insignificant trade-offs in mid and overwhelming
 advantage in bass.
 
 This is funny because I thought the digital signal from SB/receiver
 should be the same. Obviously I was wrong. Some processing is being done
 internally  in the SB/receiver.

There needn't be any digital processing for you to hear a difference.
The issue is likely the amount of jitter in the output signal. It
wouldn't be a great shock if the newer Receiver had lower jitter. And
that can make a HUGE difference.


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SqueezeboxServer on a 350MHz Pentium II running Centos 5.x with 1.5TB
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-- Thiel CS 1.6s
Transporter -- Pass Labs D1 -- Pass Labs Aleph 2s -- Thiel CS 1.6s

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Re: [SlimDevices: Audiophiles] Sound quality between wav and flac

2010-01-01 Thread rgheck

Stratmangler;501026 Wrote: 
 
 I also cannot hear any differences between wav and flac files. I have
 played around unpacking flacs to wavs and packing wavs up to flacs and
 listening to them - I'm buggered if I can detect any differences.
 

I haven't tried any such test, but I am puzzled why anyone would be
puzzled about why there COULD be such a difference. The answer, in the
digital world, is always jitter. More processing has to be done to
decode the FLAC file than to play the WAV, and it's easy to see in
principle how that could lead to higher jitter, even to
signal-correlated jitter (the worst), or to various sorts of nasties
getting into the power supply, or who knows what.

In principle, it could even be the other way around. You can imagine
some device that buffers the output when decoding FLAC but not when
streaming WAV, and that could lead to better timing on output.

Whether any of that is in fact going on here, I have no idea. But I do
know that the digital outputs on the Transporter are VASTLY superior to
those on the Receiver. I'd have been perfectly happy to spend less money
on the latter and spend the difference on a new cartridge (say), but the
improvement with the Transporter difference was sufficient to justify
the additional expense.


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Re: [SlimDevices: Audiophiles] Half speed master vinyl

2010-01-01 Thread Pale Blue Ego

If you want to hear incredible LPs, try to find some Direct-To-Disc
recordings.  These are recorded live in the studio IN ONE TAKE, and the
microphone feed is sent directly to the cutting head of the LP master.

I had lots of D2D jazz LPs.  Even had one released by Radio Shack on
red vinyl that sounded incredible.


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Re: [SlimDevices: Audiophiles] Half speed master vinyl

2010-01-01 Thread rgheck

Yeah, those can sound great. But the selection of music is pretty
limited!


-- 
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Transporter -- Pass Labs D1 -- Pass Labs Aleph 2s -- Thiel CS 1.6s
Transporter -- Adcom GDA-600 -- Pass Labs B1 (DIY) -- Adcom GFA-5800
-- Thiel CS 1.6s
Receiver -- T-Amp -- Monitor Audio Radius 90s
Receiver -- Sony HT Receiver (Garbage) -- Monitor Audio Raduis HT
Setup
SqueezeboxServer on a 350MHz Pentium II with 768MB RAM, 1.5TB storage,
running Centos 5.x

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[SlimDevices: Audiophiles] I have a question re: AIFF and/or WAV files

2010-01-01 Thread rplert

If I have created a 24 bit aiff or wav file from a 24/96 flac file, will
Transporter play them at full resolution.  I have this problem because I
use itunes on a Mac to manage my music and I have over time created
duplicate lossy compressed files for use on ipods.  Therefore, if I just
tell Slim Sever to use my music files instead of the itunes library it
finds the multiple copies of songs.  This could be fixed but it would be
some work. But If I take a 24/96 flac file and run it through Max to
create 24 bit AIFF or WAV files that would seem to solve the problem. 
Yes or no?  Thanks for your help on this one I can't quite seem to find
this in any previous threads.


-- 
rplert

Randy Lert
Linn LP12, Transporter, Linn Sondek CD12, Ayre C5xe, VTL 7.5 Reference
Line Stage, Ayre P5xe phone stage, Ayre V1 amplifer, Vandersteen 5A
speakers

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Re: [SlimDevices: Audiophiles] Is my logic correct here? Arcam DAC vs. CI AUDIO

2010-01-01 Thread kphinney

darthkringle;499867 Wrote: 
 The CI AUDIO Dac was receiving the Optical, and the Arcam was receiving
 the Spdif.
 
 
 Thanks for any further thoughts.

Optical is S/PDIF as well as coax.  Try listening a different way: 
give yourself an entire week with the CIAudio using it's coax input. 
Get a feel for it.  Move your speakers (if possible) to maximize the
soundstage.  Learn how it sounds.

Then, next week, plug the coax into your Arcam and give it a few days. 
You may realize in the first day that you can't go back to the CI Audio
or that you can't live without it.

(In my case, my Transporter is running thru the CI Audio VDA•2 with
VAC•1 PS.)


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-I like it, you may not.  I understand and respect that.-

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Re: [SlimDevices: Audiophiles] Sound quality between wav and flac

2010-01-01 Thread Themis

rgheck;501235 Wrote: 
 More processing has to be done to decode the FLAC file than to play the
 WAV, and it's easy to see in principle how that could lead to higher
 jitter, even to signal-correlated jitter (the worst), or to various
 sorts of nasties getting into the power supply, or who knows what.
Transcoding is asynchronous and does NOT execute as a music stream :
merely as a data file. Why would you think that such a thing as jitter
exists in a computer program ?


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Re: [SlimDevices: Audiophiles] Sound quality between wav and flac

2010-01-01 Thread bhaagensen

rgheck;501235 Wrote: 
 it's easy to see in principle how that could lead to higher jitter, even
 to signal-correlated jitter (the worst),

Since its easy, could you explain exactly how? 

(Bear in mind that decoding of flac to wav is not at all related to
timing)


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Re: [SlimDevices: Audiophiles] Bedrom headphones system

2010-01-01 Thread pablolie

As a Grado headphone enthusiast myself, I found the SB3 headphone out
*very* underwhelming, as in, unacceptable. I got a Creek OBH-21 and even
got the upgraded power supply, which made it a hefty upgrade. They also
offer the OBH-11 and I am sure the regular power supply is entirely
sufficient to make it a very nice upgrade.


-- 
pablolie

...pablo
Server: Shuttle X27D - Ubuntu 8.04LTS - SBS 7.4.1
Sources: SB3 (3), SB Boom (3), Duet (1), Accuphase DP65v CD
Amplifier: Accuphase E306v - Creek OBH21/22
Loudspeakers: Ceeroy 3-way tower (tuned) - Audioengine 5/S8 - Acoustic
Energy Aego M
Headphones: Grado SR-1

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Re: [SlimDevices: Audiophiles] Sound quality between wav and flac

2010-01-01 Thread rgheck

bhaagensen;501405 Wrote: 
 Since its easy, could you explain exactly how? 
 
 (Bear in mind that decoding of flac to wav is not at all related to
 timing.)

I wasn't talking about the decoding. I was talking about the digital
signal that is eventually passed to the DAC. There's jitter there, of
course. And, in principle, how much there is, and how correlated it is
with the signal, could be affected by the flac to wav conversion (which
is happening in the unit, not on the server), for example, by noise
generated by that conversion or power supply fluctuations due to just
about anything you please. 

Whether it IS affected by such things is not for me to say. Nor is it
for me to say whether, given the particular design of the SB or Receiver
or Transporter circuits, it CAN be affected in any particular one of
those cases, since I don't know anything about those designs. My point
is simply that, in principle, there is no reason to think no such thing
CAN happen. To say otherwise is to put a bit too much faith in theory
and to forget the limitations of any particular implementation.


-- 
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Transporter -- Pass Labs D1 -- Pass Labs Aleph 2s -- Thiel CS 1.6s
Transporter -- Adcom GDA-600 -- Pass Labs B1 (DIY) -- Adcom GFA-5800
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Receiver -- T-Amp -- Monitor Audio Radius 90s
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Setup
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