[SlimDevices: Audiophiles] My suggestion to lower SB jitter

2008-02-04 Thread David R .

Hi,

I own a SqueezeBox2 in combination with an external DAC.
Recently I did a small investment to lower the SqueezeBox-2 jitter.

A small Dutch company (tentlabs) sells low jitter clock upgrades for
CD-players. 
The particular upgrade I used contains an additional reclocking circuit
for the digital output (SPDIF). This circuit reduces the jitter at that
output. The incoming jitter at the DAC will be lower, resulting in
better sound.

This upgrade can also be applied to a squeezebox. The only problem is
the lack of space in the squeezebox enclosure to fit the low jitter
clock print.
The solution was to use an external jitter filter box (to be connected
between the SB and the external dac via spdif) with enough space to
include the print and to disconnect the original filter. So I only used
the original enclosure, the internal power supply and digital receiver
and transmitter. The actual filtering is done by the TentLabs low
jitter clock print (the XO-3 print) connected to the
receiver/transmitter.

I used the monarchy DIP 24/96 for the enclosure (approx 200 dollar) see
http://www.monarchyaudio.com/DIP.htm and the XO-DAC module from tentlabs
(200 euro). See
http://www.tentlabs.com/Products/DACupgrades/index.html.

The results are remarkable. Better soundstaging, less fatigue
listening. 

If you're willing to spend a few hundred euros/dollars to improve
overall sound and do some hand soldering (or find someone who can do
that) I highly recommend this investment. 

David


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Re: [SlimDevices: Audiophiles] My suggestion to lower SB jitter

2008-02-04 Thread Phil Leigh

David - are you using Tentlink to drive the SB clock from your DAC, or
are you simply reclocking the DAC SPDIF on its way to the DAC?  - in
which case, you really need the new clock as close as possible (ie
inside) the DAC.

Regards
Phil


-- 
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You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...SB3+Stontronics PSU - Altmann
JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC
V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1
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[SlimDevices: Audiophiles] What a difference a DAC makes...

2008-02-04 Thread boudy

I recently added a Citypulse DA2.03e II to my main system. I was
expecting some level improvement, but wow, I am blown away. There is a
major improvement in definition and strength of the bass, and an
significant improvement in overall clarity.

Before adding the DAC, my system consisted of:

SB3 (digital out) to DEQ2496 (analog out) to Music Angel 845 tube amp
(modified).

Present configuration:

SB3 (digital out) to DEQ2496 (digital out) to Citypulse DAC to MA 845.

I'm using the DEQ2496 for room correction and to help me tune my DIY
speakers. I originally found the analog output of the DEQ2496 to be at
least as good as the SB3's analog output.

Speakers consist of 8 full range Fostex 206ESR's in BIB's (horns that
load into the ceiling - they are huge!). I really dig these speakers,
they fill the whole house with great sound, and they produce plenty
deep clean bass.

I went with the Citypulse because I want a remote volume control and
because of its excellent reputation.


-- 
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Re: [SlimDevices: Audiophiles] Turn Me Up!

2008-02-04 Thread Phil Leigh

Timothy Stockman;265449 Wrote: 
 A step in the right direction, but they've got an uphill battle.  I
 can't count the times I've seen the not as loud as my other CDs
 complaint in Amazon reviews, as if loud CDs are to be valued by the
 listener.
 
 The other big misunderstanding I've seen in Amazon reviews is the it's
 a ripoff because it's not stereo comment.  Maybe it doesn't occur to
 some that there was a time before stereo, when everything was mono, and
 a lenghty transition period (from the late 1950s to the early 1970s)
 when there was a mix of stereo and mono recordings.  Perhaps the reason
 that a recording is in mono is because that's the way it was recorded! 
 My other beef is the mastering engineers who play mono tapes back on
 stereo tape machines...

hmmm...a bit like playing your mono vinyl with a stereo stylus...ugh.


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...SB3+Stontronics PSU - Altmann
JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC
V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1
system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend
Supertweeters, Kimber  Chord cables

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Re: [SlimDevices: Audiophiles] External DAC - what are the specific advantages?

2008-02-04 Thread haraldo

Pat Farrell;265303 Wrote: 
 darrenyeats wrote:
  To me this is a storm in a tea-cup.
 
 Its about the music. Does it move you.
 
 Many audiophiles are insane.
 
 

I know a guy who's getting performance pressure when he comes home
and listens to the music, because his rig is so darn expensive it must
sound well ==:-O

Madness?

Yes it's about the music and what moves you, it's not about sounding
darn well

-Harald


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[SlimDevices: Audiophiles] Turn Me Up!

2008-02-04 Thread Patrick Dixon

http://turnmeup.org/index.shtml

Sign up and show your support.


-- 
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www.at-tunes.co.uk

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Re: [SlimDevices: Audiophiles] Turn Me Up!

2008-02-04 Thread bigfool1956

In one of the artciles it states that the average volume of many 2007
CDs is -3db. As 3db is a barely perceptible change in loudness, that
means the difference between the peak level and the average level is
just that - barely perceptible.

I remember Robert Fripp talking about Larks Tongues In Aspic Part 1,
and how they had tried to maximise the difference between the long
quiet intro and the main rock-out section for maximum impact. It paid
off as the tracks is incredibly dynamic. Why don't musicians,
engineers, and record companies understand this?


-- 
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David Ayers
Music is what counts, hifi just helps us enjoy it more

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Re: [SlimDevices: Audiophiles] Turn Me Up!

2008-02-04 Thread haraldo

Patrick Dixon;265447 Wrote: 
 http://turnmeup.org/index.shtml
 
 Sign up and show your support.

Everybody! Join in :-D


-- 
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Suse Linux - SB3 - Benchmark DAC1 - Krell KAV400xi - Meadowlark
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Re: [SlimDevices: Audiophiles] Turn Me Up!

2008-02-04 Thread bigfool1956

Current recordings and remasters from analogue will use the latest ADCs,
which like DACs have come a long way in the last ten years. We could be
hearing the benefit - but no.

Maybe this is where MoFi and the like could be on to a winner. Market
their remasters as 'loudness wars free'.


-- 
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David Ayers
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Re: [SlimDevices: Audiophiles] Turn Me Up!

2008-02-04 Thread egd

I suspect a class action suit against the major labels and the RIAA for
inflicting permanent hearing damage on consumers would soon put paid to
the issue.


-- 
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All music also sounded completly different , and extremly musical.

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Re: [SlimDevices: Audiophiles] Turn Me Up!

2008-02-04 Thread Mark Lanctot

bigfool1956;265499 Wrote: 
 On the other hand look at this link:
 
 http://www.chicagomasteringservice.com/loudness.html
 
 and scroll down to the two waveform diagrams for Iggy Pop and the
 Stooges' Search and Destroy, one from 1990, and the other from the 1997
 remaster. Now that is truly scary stuff!

That waveform is horrific!  The recording must sound like a wall of
noise.


-- 
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Ben Klass: I won't even eat a pre-7.0 meal.  Well, unless it involves
bacon.

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Re: [SlimDevices: Audiophiles] Deutsche Grammophon

2008-02-04 Thread bigfool1956

Outrageous is more the term I would use for those prices for MP3. Good
grief even iTunes isn't that expensive for whole albums.

They just don't get it do they. Unfortunately shortsightedness by
companies like this damages the download business model by overcharging
for inferior product (i.e. MP3, not the DG catalogue itself). Whilst
people might not realise the cost of hosting such a site, they
certainly are aware that it costs much less than manufacturing a CD
with booklet and jewel case.

But then again, if people are prepared to pay


-- 
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David Ayers
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Re: [SlimDevices: Audiophiles] Turn Me Up!

2008-02-04 Thread Timothy Stockman

A step in the right direction, but they've got an uphill battle.  I
can't count the times I've seen the not as loud as my other CDs
complaint in Amazon reviews, as if loud CDs are to be valued by the
listener.

The other big misunderstanding I've seen in Amazon reviews is the it's
a ripoff because it's not stereo comment.  Maybe it doesn't occur to
some that there was a time before stereo, when everything was mono, and
a lenghty transition period (from the late 1950s to the early 1970s)
when there was a mix of stereo and mono recordings.  Perhaps the reason
that a recording is in mono is because that's the way it was recorded! 
My other beef is the mastering engineers who play mono tapes back on
stereo tape machines...


-- 
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Re: [SlimDevices: Audiophiles] What a difference a DAC makes...

2008-02-04 Thread NoFlyZone

I just upgraded the DAC to the KE series as well as the latest low noise
opamp inside my SB3. Having done this as well as using the Welborne
power supply (very nice kit!) has yielded amazing results. I am curious
though to hear an external DAC such as Benchmarks or the Citypulse
you're using. What made you decide on this flavor DAC? Had you tried
modding your SB3?


-- 
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Re: [SlimDevices: Audiophiles] What a difference a DAC makes...

2008-02-04 Thread boudy

... since I have the DEQ2496 digital equalizer in the path. I'm already
using a linear supply.

I modify tube amps and through hole circuits all the time, but
modifying the SB3 looks daunting due to those tiny SMD leads. I'll have
to practice first on a junk board.


-- 
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Main system: SB3 - DEQ2496 - Citypulse 2.03 - MA 845 - DIY 206ESR
BIB

Office system: SB3 - DCX2496 - Attenuator - DIY 2 way Open Baffle

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Re: [SlimDevices: Audiophiles] What a difference a DAC makes...

2008-02-04 Thread NoFlyZone

Daunting? You got that right. I had help and all went well. Now I'm
looking to upgrade the caps. My audiophile friend hung a 1000uf cap off
the DAC +VDD and wants to do the same to other areas of this board. I'm
a little more conservative so I may add some HQ 47uf caps in key areas.


Still I wish to compare the internal upgrades to an external DAC.


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Re: [SlimDevices: Audiophiles] Turn Me Up!

2008-02-04 Thread darrenyeats

Yes, it's a ridiculous, scandalous situation. One of the worst examples
is the remaster phenomenon...my experience agrees with the article in
that many remasters are far worse than the original. The music business
should hang its head in shame that it milks the public with this type
of thing.

If there's a choice of CD releases by default I buy the oldest one I
can find. Happily, that's usually cheaper.
Darren


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Re: [SlimDevices: Audiophiles] FW40 - Real time DSP, digital out - in?

2008-02-04 Thread Kiep

Aha, thanks! I will give it a try when I get a chance. 
Is there any significant processor hit due to the extra number
crunching?


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Re: [SlimDevices: Audiophiles] New transporter firmware (v.40) in nightlies

2008-02-04 Thread alekz

Noticed another weird thing. v40 shows ~10V lower voltage than v36.
218V instead of 228V. I wonder what voltage is chosen by the power
supply.


-- 
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Re: [SlimDevices: Audiophiles] FW40 - Real time DSP, digital out - in?

2008-02-04 Thread Kiep

I have had DEQ2496 for few years now. I don't use it as I don't really
have a need to EQ anything but I won't be selling it because it is a
great tool for those rare occasions and for $200 worth keeping (I also
have the mic). I may use it if I ever get to build a HT system. Never
had any problems with it.

The digital stream is very transparent. EQ quality is first rate ,
48bit depth with a multiple setting memory. I have never used it as a
A/D converter but as D/A works very well (uses similar to Transporter's
dacs) alhough the pro output level requires attenuation. Now that I have
the Transporter I would even risk a statement that they sound pretty
close. 

It is an extremely versatile devices and I definitely recommend it.


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Re: [SlimDevices: Audiophiles] FW40 - Real time DSP, digital out - in?

2008-02-04 Thread darrenyeats

Kiep;265563 Wrote: 
 I just don't know how it would be implemented with the SlimServer and
 Transporter.

Like this: http://inguzaudio.com

Works a treat for me,
Darren


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Re: [SlimDevices: Audiophiles] New transporter firmware (v.40) in nightlies

2008-02-04 Thread seanadams

alekz;265594 Wrote: 
 Noticed another weird thing. v40 shows ~10V lower voltage than v36.
 218V instead of 228V. I wonder what voltage is chosen by the power
 supply.

The voltage measurement is not meant to be super accurate. It is only
used to determine how the transformer primaries are connected so that
it can run at 110-120 or 220-240V.


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Re: [SlimDevices: Audiophiles] New transporter firmware (v.40) in nightlies

2008-02-04 Thread alekz

Thanks Sean. I will continue to use my multimeter, then ;-)


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Re: [SlimDevices: Audiophiles] Turn Me Up!

2008-02-04 Thread bigfool1956

Been working my way through the links on the article. The link to Bob
Orban's paper is particularly enlightening as to what goes on in music
broadcasting.

On the other hand look at this link:

http://www.chicagomasteringservice.com/loudness.html

and scroll down to the two waveform diagrams for Iggy Pop and the
Stooges' Search and Destroy, one from 1990, and the other from the 1997
remaster. Now that is truly scary stuff!


-- 
bigfool1956

David Ayers
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Re: [SlimDevices: Audiophiles] FW40 - Real time DSP, digital out - in?

2008-02-04 Thread darrenyeats

I have 3.2GHz Celeron linux box and it takes roughly 30-35% cpu.

The filters can be generated by DRC software or InguzEQ plugin (I use
the latter).
Darren


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Re: [SlimDevices: Audiophiles] 1000 Posts and Counting...

2008-02-04 Thread pablolie

congratulations!

and may i also say congratulations to slim devices on the growth - for
me personally trying these forums has become totally overwhelming
compared to a year ago. every day now there are 4 new pages of news in
general discussion wow...

shows...

(1) the success of slim devices (great!!)

(2) the limitations of web 2.0 self-support community wikis and
environments, at some point in time now one can check everything and
the enrvironment relies on either hyper-dedicated private evangelists
or hope the company throw more official support into the forums...


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Re: [SlimDevices: Audiophiles] Turn Me Up!

2008-02-04 Thread egd

I suspect a class action suit against the major labels and the RIAA for
inflicting permanent hearing damage on consumers would soon put paid to
the issue.


-- 
egd

All music also sounded completly different , and extremly musical.

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