Re: [SlimDevices: Audiophiles] Affordable Audio review of SB3

2007-09-09 Thread opaqueice

There is just as much reason to believe that FLAC sounds *better* than
WAV as there is for the opposite.


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Re: [SlimDevices: Audiophiles] Affordable Audio review of SB3

2007-09-09 Thread crooner

Yeah I read the review. Very disappointing.

That JVC CD player was all the rage back in 1990. 17 years ago!
I particularly preferred the McIntosh MCD7007 (using the highly
regarded TDA-1541A Gold Crown DAC chip)  over the JVC unit back in the
day.

The SB3, even in stock form, can stand up to virtually any consumer
grade CD player made. The JVC was less than $1000 back in 1990, IIRC.
The McIntosh unit was twice that amount.

As much as I loved my now departed McIntosh MCD7007, I consider the SB3
at least tenfold superior to it. It's that good!


-- 
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Re: [SlimDevices: Audiophiles] Affordable Audio review of SB3

2007-09-09 Thread crooner

Also, while I don't doubt the Transporter is a superb piece of
equipment, the lowly SB2/SB3 more than holds its own. Specially when
modified and used with a top quality DAC, in my experience. 

I believe the person who wrote the SB3 review on Affordable Audio
actually posted in this group asking for advice.


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread Phil Leigh

NewBuyer;226069 Wrote: 
 A little digital attenuation might not be a bad thing these days, with
 the current trend of recording so close to the 0dbfs level (sometimes
 even exceeding it).
 
 I'm also told that hardware implementations (including recent
 upsampling dacs) that natively widen an input S/PDIF signal to 24-bit
 during the resampling/upsampling process, don't pass the same 24-bit
 input signal that was input - but instead will alter the bits. So send
 a 24-bit S/PDIF signal (from say an SB3) into such a device, and those
 24-bits that went in will not be the same 24-bits that will eventually
 hit the DAC anyway. What the effect of this might be (if any), was
 never explained.


Do you have any more information on this? As previously explained, any
differences in the lowest 3-4 bits won't be detectable anyway -  but
I'd like to know where this story comes from


-- 
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+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] Affordable Audio review of SB3

2007-09-09 Thread Phil Leigh

opaqueice;226094 Wrote: 
 There is just as much reason to believe that FLAC sounds *better* than
 WAV as there is for the opposite.

That's a good point - maybe we could witness the birth of a new myth!
:o)


-- 
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+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] So, this new iPod Touch thing

2007-09-09 Thread JJZolx

Nils;226091 Wrote: 
 Ideally, it would look just as nice as Apples interface for controlling
 music on the devices, but I guess that is a pipedream.
Yeah, I think that's a good guess.


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Jim

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[SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread gdg

I understand that a number of reviewers have criticized the SB3 power
supply and suggest an upgrade to improve the sound quality from the
analog outputs. 
I intend to stick with the digital output to feed a Benchmark Dac1.
Would a power supply upgrade be worthwhile in this case?


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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread zanash

YesI run to an external dac  and the bigger psu  adds finess and
delicateness [resolution is improved?]  probabley the wrong term.

If your UK based I can give you the detail of who to build one ...pm me


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread zanash

I don't class my self as an expert in the digital side of things and
certainly not on the minutia of the sb3 .

What I can hear if I turn the volume down using the sb3 and turning up
the analogue volume to match the original volume, is a softening of the
sound a little like a telescope going out of focus.  I'd rather have the
problems of the analogue vol pot without appearing to loss digital
information.


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread NewBuyer

Phil Leigh;226102 Wrote: 
 Do you have any more information on this? As previously explained, any
 differences in the lowest 3-4 bits won't be detectable anyway -  but
 I'd like to know where this story comes from

Hi Phil,
Most recently I heard this from GW Labs, which makes 'the excellent DSP
upsampling device' (http://www.gw-labs.com/products/index.html) based on
the CS8420 I believe. Digital volume control still works from the SB3
through this device, but apparently the 24-bits are not passing through
unchanged. I guess technically this results in some kind/amount of
distortion(?) but who knows what the audible effect is (if any). I
don't notice any degradation whatsoever, in spite of their assurance
that the bits are being altered.


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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread gdg

Thanx dude, 
Unfortunately I live in Canada.


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread cliveb

NewBuyer;226124 Wrote: 
 Most recently I heard this from GW Labs, which makes 'the excellent DSP
 upsampling device' (http://www.gw-labs.com/products/index.html) based
 on the CS8420 I believe. Digital volume control still works from the
 SB3 through this device (like with other upsamplers and with upsampling
 DACs), but apparently the 24-bits are -not- passing through unchanged.
Sorry, am I missing something here? It's an upsampler. You can't expect
the bits to remain unaltered during such a process.


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread cliveb

zanash;226123 Wrote: 
 What I can hear if I turn the volume down using the sb3 and turning up
 the analogue volume to match the original volume, is a softening of the
 sound a little like a telescope going out of focus.
Point 1: Nobody has ever suggested that the SB's digital volume control
should be used for basic gain staging. Your experiment yields results
which are not relevant in day-to-day operation.

Point 2: How can you be sure that the change in focus isn't due to
the fact that you're operating the analogue preamp at a different gain?
All active preamps have slightly varying noise and distortion as you
adjust their gain.


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread darrenyeats

Being an IT person (like others on the forum) I guess I am less scared
of some of these digital processes.

Upsampling doesn't destroy any information. (Downsampling might.) For
example, if you have a photo sized 300 pixels by 200 pixels on
computer, and expand it to 600 by 400 pixels, you do not destroy any
original information. You just make it bigger.

There are various ways of expanding the image.

You could create 2x2 pixel blocks exactly corresponding to the original
photo. In which case, the photo looks exactly the same, just as blocky,
except physically bigger on the screen.

Or, you could expand it using a dithering technique which
interpolates values for each of the pixels at the new resolution, from
values of pixels at the old resolution.

Either way, no information has been lost (and I mean none, nada, zip,
not a jot) and one may argue that a dithered up-scaled picture might be
a more natural representation for the human eye. If it is upscaled in
this way, and downscaled in a compatible fashion to the original size,
you still get exactly the original photo. Exactly, I mean exactly down
to the last 1 or 0! Try it. Repeat the process ten times, a million
times. The end result is exactly the same as the original, down to the
last 1 or 0. It's just the way it works. (I might add that if anyone
claimed to *see* a difference in the end image, it could only be put
down to a placebo effect :-p Ooh!)

The issue for red book is that the original signal is encoded with a 16
bit word length. Upscaling involves no degradation to the signal, in
fact might enhance it subjectively (but not in terms of its content of
absolutely accurate original information, which remains utterly
unchanged). And if this upscaling is done to a sufficient degree it
means that subsequent volume attenuation might still not impact that
information content - you still have the original resolution encoded
in the signal. (This depends on the level of upscaling, and the amount
of attenuation - which is why it's recommended to stay in the higher
side of the digital volume range.)

If you're not so familiar with IT concepts it sounds scary, but really
it does work this way.

Regards, Darren

PS: Eiret, I'm glad your calculator agrees with me that upscaling from
16 bit to 24 bit multiplies the numbers by 256 :-)

PPS: Anyone wanting to know how to check for computer files being
bit-identical should google checksum.


-- 
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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread eiret

PS: Eiret, I'm glad your calculator agrees with me that upscaling from
16 bit to 24 bit multiplies the numbers by 256 :-)

Yes, the calculator agree approximately. There is a bit missing. I dont
remember why. To day i had a wake up call at 11:11, its true.


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread darrenyeats

eiret;226132 Wrote: 
 To day i had a wake up call at 11:11, its true.

LOL! Brilliant.

Yeah, what happens is that 8 bits can represent 2^8 states (256). That
means numbers 0 to 255 - since 0 is one of the states.

So 8 bits can represent any number up to 2^8-1. 16 bits can represent
any number up to 2^16-1 etc.

Regards, Darren


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread eiret

darrenyeats;226133 Wrote: 
 LOL! Brilliant.
 
 Yeah, what happens is that 8 bits can represent 2^8 states (256). That
 means numbers 0 to 255 - since 0 is one of the states.
 
 So 8 bits can represent any number up to 2^8-1. 16 bits can represent
 any number up to 2^16-1 etc.
 
 Regards, Darren

No i had an other wake up call at 14:37

Regards, eiret


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Re: [SlimDevices: Audiophiles] Affordable Audio review of SB3

2007-09-09 Thread amcluesent

I believe the person who wrote the SB3 review on Affordable Audio
actually posted in this group asking for advice.

Yep, they did...but there are so many glaring factual errors in the
'review' they obviously didn't heed any of it.


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread opaqueice

darrenyeats;226129 Wrote: 
 
 And if this upscaling is done to a sufficient degree it means that
 subsequent volume attenuation might still not impact that information
 content - you still have the original resolution encoded in the
 signal. (This depends on the level of upscaling, and the amount of
 attenuation - which is why it's recommended to stay in the higher side
 of the digital volume range.)

I'm very confused by this discussion.  According to Sean the TP can
resolve 21 bits, which means the last three are meaningless (and for
the SB it's considerably worse).  Rounding errors from digital
attenuation can only ever affect the last bit.  So what are we talking
about?

I think it's ordinary signal/noise logic, which applies equally well to
analogue controls, that tells you not to turn down the volume too much. 
The digital stuff is a red herring.


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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread jeffmeh

gdg;226118 Wrote: 
 I understand that a number of reviewers have criticized the SB3 power
 supply and suggest an upgrade to improve the sound quality from the
 analog outputs. 
 I intend to stick with the digital output to feed a Benchmark Dac1.
 Would a power supply upgrade be worthwhile in this case?

Maybe.  Some people have found it to make a difference, others have
not.  The most plausible hypothesis is that the RFI generated by the
stock switching supply presents no problem for the SB3, but it can
affect other components more sensitive to this RFI.

I bought an inexpensive, linear, regulated PSU and could not hear any
difference. YMMV.


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread eiret

opaqueice;226140 Wrote: 
 I'm very confused by this discussion.  According to Sean the TP can
 resolve 21 bits, which means the last three are meaningless (and for
 the SB it's considerably worse).  Rounding errors from digital
 attenuation can only ever affect the last bit.  So what are we talking
 about?
 
 I think it's ordinary signal/noise logic, which applies equally well to
 analogue controls, that tells you not to turn down the volume too much. 
 The digital stuff is a red herring.

Interesting question and reflection.

Maybe the digital volumecontrol stuff is a red herring.
From an amateur audio filosopher point of veiw there was meaningful to
mention that it is measurable mathematically, an decrease in audio
quality when using digital volumecontrol. Even though you cant hear it.
Thats how i express it after reading the guide linked in an earlier
post.

There are peaple that prefer analog volumecontrol and those who dont.
The same with proffessinoal audio producers(both analog and digital). 

If the transporter have digital volumecontrol ? Maybe it is bechause
the digital is good enouhg ?

It would be fine to have a final conclusion : Does digital
volumecontrol resoult in decrease in audioquality ?

Is it just measurable mathematically ?


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread Phil Leigh

OK I'll have a go:

No, properly implemented digital level control does not compromise or
degrade audio quality in a way that a human being (not a calculator)
can detect, provided that it is used sensibly - i.e.the level is not
attenuated too much. For the SB/TP that means keeping the level within
the 80-100 range and using analogue attenuation to make this your
normal listening range.

By the way, on the topic of upsamplers altering the bits  - ignoring
the 16 v 24 issue - it is possible that the lowest bit may be altered
due to rounding differences - but the lowest bit of 24 is inaudible
anyway!.
One could argue that altering the 16th bit of 16 bit audio is also
inaudible - but there is some debate about this.


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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+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread darrenyeats

opaqueice;226140 Wrote: 
 I'm very confused by this discussion.  According to Sean the TP can
 resolve 21 bits, which means the last three are meaningless (and for
 the SB it's considerably worse).  Rounding errors from digital
 attenuation can only ever affect the last bit.  So what are we talking
 about?
 
 I think it's ordinary signal/noise logic, which applies equally well to
 analogue controls, that tells you not to turn down the volume too much. 
 The digital stuff is a red herring.

The comment about volume control was a last minute aside. (I must
remind myself to stop making these last minute asides which screw up my
main message!). And I agree, SNR is the real issue in practical terms.

The main point of my post was to explain upscaling and why it isn't to
be feared.
Darren


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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread IvanSlade

zanash;226121 Wrote: 
 YesI run to an external dac  and the bigger psu  adds finess and
 delicateness [resolution is improved?]  probabley the wrong term.
 
 If your UK based I can give you the detail of who to build one ...pm me
Hi, I am in the UK and would be interested.
Best
Ivan


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Re: [SlimDevices: Audiophiles] Affordable Audio review of SB3

2007-09-09 Thread quietdragon

desertrat58;226090 Wrote: 
 I upgraded from an SB3 to a Transporter. The SB3 was very good for the
 price. But the Transporter turned my revealing, high powered system
 into a concert hall.

Slightly off topic, but given that the data stream is digital, I would
think the main difference should be purely from the DAC stage.

Did you give consideration to putting your dollars into a DAC and using
the SB3 as a pure codec?


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Re: [SlimDevices: Audiophiles] Affordable Audio review of SB3

2007-09-09 Thread desertrat58

Yes I did, but I decided I wanted a one box solution. Also the TP has
plenty of inputs to use its DAC for other devices. Everytime I looked
at external DACs, I had to use their coax input for the SB3, and then
had no inputs left over for my DVD player or CATV box. The TP is its
own player, and a fine external DAC as well.


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monitors + MK MPS 5410 subwoofer.
Also a Sota Nova tt with Graham 2.2 arm  Benz Ace HO feeding into
BP25MC.

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Re: [SlimDevices: Audiophiles] Affordable Audio review of SB3

2007-09-09 Thread tyler_durden

Phil Leigh;226103 Wrote: 
 That's a good point - maybe we could witness the birth of a new myth!
 :o)

It could lie right along side the extant myth about CDs copied to CDR
sounding better than the factory pressed CDs.

TD


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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread tyler_durden

jeffmeh;226151 Wrote: 
 Maybe.  Some people have found it to make a difference, others have not.
 The most plausible hypothesis is that the RFI generated by the stock
 switching supply presents no problem for the SB3, but it can affect
 other components more sensitive to this RFI.
 
 I bought an inexpensive, linear, regulated PSU and could not hear any
 difference. YMMV.

Everyone who does this assumes that the switching supply radiates more
RFI than the linear supply that they are replacing it with.  This is
not necessarily the case.  Without numbers you are just guessing.  

You may as well reverse the resistors in the SB and hope that the thing
will sound better when you're through.  But which ones?  All of them?  A
few critical ones?

One guess is as good as another.  Maybe you need a linear supply AND
reversed resistors...

TD


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Re: [SlimDevices: Audiophiles] Affordable Audio review of SB3

2007-09-09 Thread desertrat58

BTW, how do you insert those quote boxes into replies?


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Re: [SlimDevices: Audiophiles] Digital outs and volume control on SB3

2007-09-09 Thread amcluesent

From Slimserver Home page, Player Settings for {name} / Audio - DIGITAL
VOLUME CONTROL set output level to fixed


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Re: [SlimDevices: Audiophiles] Affordable Audio review of SB3

2007-09-09 Thread Skittler

desertrat58;226182 Wrote: 
 BTW, how do you insert those quote boxes into replies?

That'll be the big button over there 
that says Quote on it  :)


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Re: [SlimDevices: Audiophiles] foobar vs. softsqueeze for FLAC playback with ASIO driver

2007-09-09 Thread weadley2004

I'm a newbie.  I'm experimenting with a similar problem to the original
post (comparing sound between foobar using asio drivers and
softsqueeze).  

I have a laptop with foobar2000 and softqueeze installed.  My laptop is
connected to my Outlaw RR2150 via a USB cable.  The  Outlaw has a
built-in USB DAC -- the UAC 3553B DAC -- so effectively the amplifier
becomes the laptop's soundcard).  When using foobar2000, there is a
large, subjective improvement in sound quality when using ASIO instead
of the base USB drivers.   I'm using ASIO4ALL with foobar2000 to
achieve this, since I have no unique drivers for the USB DAC in the
Outlaw (so I think in this case I'm in a different situation than folks
with an M-Audio USB DAC for example.

I much prefer the SoftSqueeze interface (and hope to buy Slim Device
hardware in the future), so I was comparing the SoftSqueeze sound to
foobar.  On initial comparison, foobar2000 seemed to sound much better.
I then tried to setup ASIO with SoftSqueeze, but in the Audio Mixer
combo box I'm not presented with options to use ASIO.  I see the
'Primary Soundcard', my USB option, my laptop's internal soundcard, and
Java Audio Engine.  

Is there a way to enable SoftSqueeze to use ASIO4ALL (or any other ASIO
solution) with my amplifier's built-in USB DAC?  Is there a way to use
the Java Audio Engine and set it up to use ASIO?


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Re: [SlimDevices: Audiophiles] Affordable Audio review of SB3

2007-09-09 Thread desertrat58

Skittler;226196 Wrote: 
 That'll be the big button over there 
 that says Quote on it  :)

Jeez, can't say I ever noticed that button. Time for the eye exam...


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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread bad . wolf

Hi live in the UK and bought this one from Russ Andrews.

http://www.russandrews.com/lookup/1/region/UK/currency/GBP/customer_id/PAA0999099307228YFPFJNCLQVWBGKOH/product-SqueezePak-power-supply-for-Squeezebox-1810.htm

Found a definite improvement although without doubt a tad expensive,
but once you’ve bought it you’ve bought it!
Bad wolf


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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread tyler_durden

bad.wolf;226209 Wrote: 
 Hi live in the UK and bought this one from Russ Andrews.
 
 http://www.russandrews.com/lookup/1/region/UK/currency/GBP/customer_id/PAA0999099307228YFPFJNCLQVWBGKOH/product-SqueezePak-power-supply-for-Squeezebox-1810.htm
 
 Found a definite improvement although without doubt a tad expensive,
 but once you’ve bought it you’ve bought it!
 Bad wolf

You're replacing a switch mode supply with a switch mode supply?  Now
I've heard everything!

TD


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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread gdg

Dudes,
an engineer/audiophile friend just informed me that the SB3 power
supply isn't a problem at the digital output but it does radiate AC
noise. I figure a decent line conditioner with dedicated digital
filters should do the job.


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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread mudlark

Oh come on, everyone knows that my power supply is the best.

Why I built it i don't know, but it does make me feel better.

It's got Italian styling , british components and guaranteed to last
for ever.

Cool.


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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread tyler_durden

gdg;226223 Wrote: 
 Dudes,
 an engineer/audiophile friend just informed me that the SB3 power
 supply isn't a problem at the digital output but it does radiate AC
 noise. I figure a decent line conditioner with dedicated digital
 filters should do the job.

A digital watch radiates noise too, but when have you heard anyone
complaining about it?  A linear supply radiates noise- look at the
waveform at the rectifiers and explain how THAT won't radiate.  It
isn't a matter of does it radiate- everything does, it is a matter of
how much it radiates.  It is also a matter of how susceptible other
devices are to that radiation.

You're going to get a what, $500 line conditioner to theoretically
counteract the noise made by a $5 power supply?  In this context the
guys who spend $300 for a linear supply for the SBs look downright
sensible!

TD


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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread Pat Farrell
mudlark wrote:
 It's got Italian styling , british components and guaranteed to last
 for ever.

Italian styling is cool.
British electrics, perhaps from Lucas, god of darkness?


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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread mudlark

Pat Farrell;226228 Wrote: 
 mudlark wrote:
  It's got Italian styling , british components and guaranteed to last
  for ever.
 
 Italian styling is cool.
 British electrics, perhaps from Lucas, god of darkness?

I once owned a Ducati 350 so don't talk to me about British electrics
being crap.

The bike would do a good 90 plus but 30 was pushing it in the dark.


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread opaqueice

Phil Leigh;226156 Wrote: 
 OK I'll have a go:
 
 No, properly implemented digital level control does not compromise or
 degrade audio quality in a way that a human being (not a calculator)
 can detect, provided that it is used sensibly - i.e.the level is not
 attenuated too much. For the SB/TP that means keeping the level within
 the 80-100 range and using analogue attenuation to make this your
 normal listening range.
 
 By the way, on the topic of upsamplers altering the bits  - ignoring
 the 16 v 24 issue - it is possible that the lowest bit may be altered
 due to rounding differences - but the lowest bit of 24 is inaudible
 anyway!.
 One could argue that altering the 16th bit of 16 bit audio is also
 inaudible - but there is some debate about this.

Well, OK - but an analogue volume control turned way down is also bad. 
The point is, there doesn't seem to be ANY real difference between
analogue and digital volume controls, even in principle.  In both cases
there's simply an issue of S/N.  

Digital rounding errors - at least in the case at hand - are totally
irrelevant no matter how much you turn down the volume because they're
always less than the noise.


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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread Pat Farrell
mudlark wrote:
 Pat Farrell;226228 Wrote: 
 Italian styling is cool.
 British electrics, perhaps from Lucas, god of darkness?
 
 I once owned a Ducati 350 so don't talk to me about British electrics
 being crap. The bike would do a good 90 plus but 30 was pushing it in the 
 dark.

Yes, but do Italians drink warm beer? The answer to why the Brits drink 
warm beer is Lucas refrigerators.

I own a scooter shop, scootrichmond.com, I know all about Vespa and 
Lambretta electrics.

The proper thing to do at night is to park your Italian bike and go 
drink wine in the piazza.

Pat

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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread mudlark

And in once owned a scooter..
a triumph tigress 250.

handled a dream but the engine was weak.

i agree about parking the little buggers and having a gill.


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread eiret

The point is, there doesn't seem to be ANY real difference between
analogue and digital volume controls, even in principle.  

opaqueice,

I am interested in your meaning after reading the guide.
If you have time, please read trough this section of this guide :
Digital volumecontrols.
http://extra.benchmarkmedia.com/wiki/index.php/Digital_volume_control

A little quote form the guide :Disasterous distortion can potentially
arise when a digital volume control is implemented

Binary numbers, just like decimal numbers, do not always multiply and
divide evenly. There are often remainders - extra digits that are a
result of the multiplication.


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Re: [SlimDevices: Audiophiles] Affordable Audio review of SB3

2007-09-09 Thread abelincoln

Amazing how many sound difference can not be statically identified in
the double blind test.


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread NewBuyer

cliveb;226126 Wrote: 
 Sorry, am I missing something here? It's an upsampler. You can't expect
 the bits to remain unaltered during such a process.

Hi cliveb,
More likely that I am missing something, instead of you! As I
understood it, when an incoming signal to an upsampler or upsampling
DAC is already 24-bit (like say a digitally attenuated signal from an
SB3 S/PDIF output), there may be some amount of word length reduction
done immediately prior to the upsampling and re-extension of the bit
width by the upsampling algorithm or device. Outcome: Who knows! :) (I
haven't noticed any audible result).


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Re: [SlimDevices: Audiophiles] SB3, best audio quality and sound level

2007-09-09 Thread opaqueice

eiret;226237 Wrote: 
 
 Binary numbers, just like decimal numbers, do not always multiply and
 divide evenly. There are often remainders - extra digits that are a
 result of the multiplication.

My point is very simple.  Rounding errors like that can only affect the
last digit.  So the worst thing that can happen is that the
volume-reduced result is off by an amount equal to half the 24th digit.
On the other hand the last three digits are lost in noise anyway for
the transporter (and it's worse for the SB).  So the distortion due to
noise is always at least 16 times the amplitude of the distortion
induced by the digital rounding.

Am I missing something?


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Re: [SlimDevices: Audiophiles] Power Supply Upgrade for SB3?

2007-09-09 Thread peejay

Lucky this thread went off topic early...history tells us this topic
is hazardous to your online health


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