Re: [SlimDevices: Audiophiles] Re: SB-3 and external DAC

2005-12-02 Thread Hiroyuki Hamada
I got a great tip from a Toslink user, Victor Lee, at another audio  
forum ([EMAIL PROTECTED]).  He soldered in a 0.1 uF ceramic cap  
between the 5V pin and the ground pin of the Toslink module of his  
SB1 and got much better sound.  He found that there was no local  
filtering for the toslink transmitter of the SB1.  I have SB2s and I  
have done the same treatment for it.  The result was much smoother  
sound with clearer bass extension.  I have no idea if the SB3 is  
equipped with the filtering or not, but if you are a SB3 user, you  
should check.  I highly recommend this minor tweak to the Toslink users.


Hiroyuki
On Dec 2, 2005, at 12:58 AM, PhilNYC wrote:



ezkcdude Wrote:
So, which do you prefer? I've always heard that the coaxial output  
was

better than toslink.


I recently did an A/B test between a Wireworld SuperNova 5 glass
toslink cable and an Acoustic Zen Silver Byte coax digital cable and
strongly preferred the AZ Silver Byte.  Deeper soundstage, more open
sound, etc.

A friend also did the same test in his system and preferred the
Wireworld toslink; felt it had better pace and immediacy.

So...personal taste has a lot to do with it...


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Re: [SlimDevices: Audiophiles] Re: SB-3 and external DAC

2005-12-02 Thread ron thigpen

Hiroyuki Hamada wrote:
I got a great tip from a Toslink user, Victor Lee, at another audio  
forum ([EMAIL PROTECTED]).  He soldered in a 0.1 uF ceramic cap  
between the 5V pin and the ground pin of the Toslink module of his  SB1 
and got much better sound.  He found that there was no local  filtering 
for the toslink transmitter of the SB1.  


Sean,

Any comment on the above?
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[SlimDevices: Audiophiles] Re: Best mod?

2005-12-02 Thread mbonsack

sleepysurf Wrote: 
 FYI, the off-the-shelf Elpac linear PSU that most folks were originally
 recommending was the Elpac WM075-1950-760 (not the WM050-)
 
 I bought mine from electronicsurplus.com
 
 However, I believe the WM075- model is/was in limited supply, so
 perhaps folks tried the lower powered model and found it suitable as
 well.  I'm not an EE, but perhaps somebody else with sufficient
 knowledge can chime in.

Looks like Elpac upgraded this (at least the model No.) to WM080-. 
It's $28.70 at allied electronics.


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[SlimDevices: Audiophiles] Re: Accuracy of EAC

2005-12-02 Thread Jim

In 99.% of cases you won't lose anything, so in theory it will still
be lossless.   But then it's jumbled up lossless which on studio albums
won't matter so much as most tracks start/end with silence.  But on a
live album you'll have a nanosecond of the applause at the start of the
next track etc.  When dealing with lossless nanoseconds are
important!

I've thought sometimes to go through a few of the popular CD's and
produce a list of fingerprints of the tracks (FLACs) so another user
could do the same to ensure correct offset.

One stage further than this could be fingerprinting the file 2000 times
with a fake -1000 to +1000 offset (I chose these numbers cause I don't
think offsets get any bigger).  User could then see exactly what there
offset needs to be without relying on EAC's old  mysterious internal
checking.


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[SlimDevices: Audiophiles] Re: Best mod?

2005-12-02 Thread sleepysurf

Nope, the WM080 has entirely different specs.  See spec comparison
here...
http://www.elpac.com/uploads/documents/datasheets/WM%20REV%20A.pdf


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slimserver preamp vol control, 300gb buffalo linkstation (remote flac
audio file storage), sunfire cinema grand 200 ~five (vertically
bi-amped) driving martin-logan aerius i's, blue jeans cables.

'Click to see pix of my system'
(http://www.martinloganowners.com/~tdacquis/forum/showthread.php?t=732)

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[SlimDevices: Audiophiles] Re: Receiver / Speaker Recommendations?

2005-12-02 Thread Duman

For 2-channel listening, I have my sights set on:

a parasound Zamp v3
http://tinyurl.com/7kwce) and

Energy C-3 speakers
http://tinyurl.com/cy43a

They're a little over your budget as priced, but have near-universal
rave reviews.  The Energy's in particular are a steal at $300.  The
Zamp has a remote power on feature and line attenuators that make it
particularly suitable for the SB.

Good luck!


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[SlimDevices: Audiophiles] Re: Audiophile review of SB3

2005-12-02 Thread mbonsack

tomsi42 Wrote: 
 I am not sure if it will help. It probably depends on your kit. But if
 it costs $7 or $10, it is worth a try. 
 
 Personally I like to compare cables once in a while, but in a sensible
 pricerange. But that's me.

I looked at the Elpac supplies (specifically the WM080-1950-760) at
Allied Electronic's and it's almost $30.  Where can you get a decent
supply for $7 to $10?


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[SlimDevices: Audiophiles] Re: Accuracy of EAC

2005-12-02 Thread Jim

pfarrell Wrote: 
 
 The idea of having an AccurateRip process so that many users
 can compare each others work is great. And adding
 a track-level checksum to the SlimServer db is just a SMOP.
 
Did I mention Slim, Slimserver, Squeezebox or even SlimMP3 in my post?
No.

This idea had nothing to do with either.


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Re: [SlimDevices: Audiophiles] Re: Accuracy of EAC

2005-12-02 Thread Pat Farrell
On Fri, 2005-12-02 at 10:38 -0800, Jim wrote:
 Did I mention Slim, Slimserver, Squeezebox or even SlimMP3 in my post?
 This idea had nothing to do with either.

Jesus, lighten up.
Why did you post on the SlimDevices audiophile list/forum?


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[SlimDevices: Audiophiles] Re: Quick question: CD's per hard drive

2005-12-02 Thread Cleve

Thanks for the suggestions - I'm busily copying CDs to *.wav files via
EAC.  I used the settings for EAC recommended at the Hydrogenaudio
website.  

Question(s) about FLAC -  I haven't been able to find any suggestions
on what settings to use with it.  The FLAC website doesn't seem to
explain much about the GUI or the various settings, surprisingly.  For
example, what level of encoding do I want to use (it defaults to Level
6)  Should I check or uncheck replay gain (and what does it do
anyways?)   I have Verify, and Add Tags checked.  Replay Gain,  Align
on Sector Boundaries, and Cuesheet are unchecked.   Ogg-Flac and Decode
through Errors are both unchecked.  

Thanks!


-- 
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Two-channel system;

McIntosh MC2205 amplifier
McIntosh MAC4100 receiver
Klipsch CF-4 speakers
Denon DR-M3 Cassette Deck

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[SlimDevices: Audiophiles] Re: Accuracy of EAC

2005-12-02 Thread Jim

pfarrell Wrote: 
 Jesus, lighten up.
 Why did you post on the SlimDevices audiophile list/forum?
 
It was a EAC question, should it have been posted on EAC's forum?  

The original poster was finding issues that we've all had in not having
CD's that the EAC author had.  Maybe if he posted the titles/serial
numbers/barcodes of some of these CD's maybe someone else who is
confident their EAC is set correctly and has ripped them could supply
him with their FLAC fingerprints for checking.

Then I thought some would be interested in an idea to automate this
sort of thing, as in some areas EAC is clearly lacking.


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Re: [SlimDevices: Audiophiles] Re: Accuracy of EAC

2005-12-02 Thread Pat Farrell
On Fri, 2005-12-02 at 11:05 -0800, Jim wrote:
 pfarrell Wrote: 
  Why did you post on the SlimDevices audiophile list/forum?
  
 It was a EAC question, should it have been posted on EAC's forum?  

There is a slim-oriented ripping forum/list

Most of the slim devices forums/lists have a lot to do
with squeezeboxen, slimservers, etc. I personally
don't rip/extract/or compress CDs except
to play on my SqueezeBoxen.

 The original poster was finding issues that we've all had in not having
 CD's that the EAC author had.

Which is one of the good things that the AccurateRip folks are doing,
listing calibration CDs, values, etc.

 (the EAC author) Maybe if he posted the titles/serial
 numbers/barcodes of some of these CD's maybe someone else 

Might be good, but I can't complain about a guy who writes
free software that is useful. Not perfect, but useful.
Why not write him, as it is unlikely that he reads
these SqueezeBox oriented lists.

 confident their EAC is set correctly and has ripped them could supply
 him with their FLAC fingerprints for checking.

Which gets into questions about what is set correctly, what does
that mean, etc. And the AccurateRip approach is one that
works for some people. Its free as well, so if one
is a Windows user, it is an option to consider.



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[SlimDevices: Audiophiles] Re: SB-3 and external DAC

2005-12-02 Thread vdorta

PhilNYC Wrote: 
 A good high end DAC is going to have a few advantages over the SB3. 
 First and foremost, there is an opportunity to design a more
 sophisticated analog output; even from just a materials quality
 perspective, this is possible.  Beyond that, power supply quality,
 physical isolation of circuits etc are things that a high end DAC can
 offer that the SB3 cannot.
Comparing a high-end external DAC to the stock SB is unfair, IMHO. Full
mods by Bolder or Red Wine Audio cost around $500, or about half of what
a Benchmark costs, with more or less the same advantages but with less
circuitry, less cabling, and higher-end passive parts in the modded SB.


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[SlimDevices: Audiophiles] Pre-emphasis

2005-12-02 Thread Jim

Pre-emphasis.  A now seemingly obsolete Red-book CD spec flag, not used
these days but appearing on old pressings of some CD's and some new
classical ones apparently.

http://www.digital-inn.de/exact-audio-copy/19034-pre-emphasis-use-eac.html
http://www.hydrogenaudio.org/forums/index.php?showtopic=38312st=0

Other than using cue sheets it seems even FLAC is not geared up to
handle this, I'd of thought in a .flac file there'd be a flag to at
least pass to the decoder?

EAC notices it in most cases and applies to any cue sheet made, but
there is a detection bug (see threads above).

One could apply the effect manually on a audio file, but then it's not
lossless.

What does the Squeezebox hardware do with pre-emphasis (traditionally
it is the role of the CD player to apply it).  A board search reveals
this hasn't been discussed before.


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[SlimDevices: Audiophiles] Re: Pre-emphasis

2005-12-02 Thread JJZolx

 A board search reveals this hasn't been discussed before.
And for that, let us give thanks.

http://www.ocfoundation.org/ocf1010a.htm


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[SlimDevices: Audiophiles] Re: Pre-emphasis

2005-12-02 Thread Jim

JJZolx Wrote: 
 And for that, let us give thanks.
 
 http://www.ocfoundation.org/ocf1010a.htm

haha.  I humbly salute your thank you.  Yes, I suffer from Obsessive
Compulsive Lossless Disorder.

But to get back on topic, this is actually an audio issue, it affects
the audio, it questions the true losslessness of the Squeezebox and
raises a question about FLAC.  So IMHO it deserves to be noted,
commented on or at least appearing in the search results of somebody
thinking about it in the future.


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[SlimDevices: Audiophiles] Re: Quick question: CD's per hard drive

2005-12-02 Thread ceejay

Cleve Wrote: 
 
 Question(s) about FLAC -  I haven't been able to find any suggestions
 on what settings to use with it.  The FLAC website doesn't seem to
 explain much about the GUI or the various settings, surprisingly.  For
 example, what level of encoding do I want to use (it defaults to Level
 6)  Should I check or uncheck replay gain (and what does it do
 anyways?)   I have Verify, and Add Tags checked.  Replay Gain,  Align
 on Sector Boundaries, and Cuesheet are unchecked.   Ogg-Flac and Decode
 through Errors are both unchecked.  
 
 Thanks!

type flac -help at a command prompt for details on the switches.

Level of encoding isn't that important, you'll get the same audio
quality.

Replay gain causes a tag to be added which a player program can use to
normalise all the tracks you are playing to a consistent loudness.

Be careful doing WAV first with EAC and then producing FLAC separately:
the advantage ofgoing straight to FLAC is that EAC will look up the
metadata and populate your tag information for you, which won't happen
if you do it in separate steps - you'll have to use something else for
the lookup.

Ceejay


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Re: [SlimDevices: Audiophiles] Re: Pre-emphasis

2005-12-02 Thread Pat Farrell
On Fri, 2005-12-02 at 14:47 -0800, Jim wrote:
 Anyhow, I was thinking pretty much along the same lines as you but then
 I found this:
 http://www.digital-inn.de/105765-post13.html

Interesting. Of course, pre-emphasis was specified for a reason,
and it was supposed to make the music more realistic.

Do you have other citations on what the curve should be?
Since the RedBook was essentially pre-microcontroller,
I expect that you can implement it in a simple
LRC circuit, the cited article talks about just 
pushing it thru a multiband EQ.

 And I did look at the FLAC spec before posting, and saw no mention of
 it other than it being held in cuesheet-embeded FLAC's.

That's kinda weird. I'd expect it to be in the header metadata
within each track if it was supported at all. Not
that having it be half implemented would surprise me.

I'd guess that this correction belongs server side, mostly
because server side cycles are free. And because
mere mortals can program plugins on the server.

Might be fun to whip up a quick query tool to see how
many tracks folks have in their libraries, if any,
that have the flag set. I'd guess that none
of the MP3 packages know about it, from the German
site above, most of the CDs are classical or jazz,
and the early MP3 dudes mostly rocked.

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[SlimDevices: Audiophiles] Re: SB-3 and external DAC

2005-12-02 Thread dwc

What model are you suggesting?

I'm not suggesting or recommending a specific model. There are in fact
many contenders depending on one's taste.  I own an example, but there
are many more to be found.  My point was that you don't have to spend a
grand on a DAC to get a decent one.

The DAC's I own are built by an engineer in Taiwan who builds under the
label MHDT labs and sells via ebay.  He builds non-oversampling DACs
based on the 1543 and the 1545 chips.

I own both the Digital Dialogue II and the Digital Renaissance
which is similar, but has a pencil tube in the output section.

Dialogue II: http://tinyurl.com/b5l88

It doesn't look like he has any Renaissance DAC's on sale now, but he
has added other models to his lineup.

And how do you compare it to the built in DAC in the SB3?

wrt to the DAC the diff would be: Non-oversampling vs. oversampling.

wrt to the difference in sound, I have not made a critical comparison. 
Right now I use the analog outputs from the sb3 in my room to feed a
cheap 100wpc Pioneer receiver into Alesis Monitor Twos. I use the
digital output into the Dialogue II and then into a Singlepower PPX3
into Senn HD600's. The headphone rig sounds wonderful. 


There are other regarded DAC's in the price range.

Long list of DACs:
http://www4.head-fi.org/forums/showthread.php?t=139906

(mhdt dac, moodlab dac)
http://www4.head-fi.org/forums/showthread.php?t=140074

Another DAC: http://www4.head-fi.org/forums/showthread.php?t=139545


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