Apogee mini dac or Benchmark DAC1
 

I've spent some time in rec.audio.tubes to try and establish what this
is all about.

You could not have chosen a worse place - you will learn absolutely
nothing from that newsgroup. Read the Tube DIY forum on
www.audioasylum.com and you will find posts by the leading tube
designers. Try it out for a month or so. You will see a universe of
difference in the quality of engineering, debate, knowledge and
information. Plus it's leading edge - people experimenting with ideas.

Apogee mini dac or Benchmark DAC1
 

Andy Evans wrote:

If the DAC isn't (sufficiently) transparent then putting a valve (tube)
in series with it cannot make the combination transparent. Yet
sometimes I see the T word used to describe
"better" in this context.

Isn't a DAC by definition something with an analogue output stage? So
something must be on the end of it, whether ss circuit,
transformer,capacitor or tube stage. The advantage of a tube stage is
that the output with DC on it can be fed directly into the grid of the
tube, and the DC included in the biasing. You can't talk about a DAC as
if there's "nothing" on the end of it.

You clearly don't know much about DAC back end circuitry.

Do tell me about this supposed advantage with tubes.

Graham

Apogee mini dac or Benchmark DAC1
 

Andy Evans wrote:

You've snipped all the previous content so it's impossible to know what exactly
you're replying to.

Please use 'inline posting'.
http://en.wikipedia.org/wiki/Bottom_...nline_replying

You currently have all the hallmark signs of an arrogant opinionated
self-obsessed jerk !

Graham

Apogee mini dac or Benchmark DAC1
 

Please pull your head out of your arse !

It's up to you if you want to lower the quality of debate and make
senseless comments - I'm quite happy to debate this on a rational level.

Apogee mini dac or Benchmark DAC1
 

So, do tell me. In your opinion how does the tube stage influence the
sound
exactly ?

Why do you expect me to describe sound in words - why not go and listen
to a variety of tube output stages then you can find out for yourself.

Apogee mini dac or Benchmark DAC1
 

Andy Evans wrote:

What they are confusing this with is their preference for an
intentionally flawed but
entirely pleasnt and relatively benign form of distortion. Nothing
wrong with their
listening preference but the presentation of this as inherently
superior is utterly
bogus.

The idea that valves are simply "added distortion" and nothing else
could only be made by somebody with a) very little knowledge of modern
valve circuits and how they sound or b) somebody with cloth ears.

There is precious litle 'modern' about any valve circuit. I learnt on them btw.

For someone with cloth ears I must have been doing well to examine some problems
audibly in the noise floor here on Thursday .....
http://mixonline.com/mag/audio_mark_knopfler/
http://www.recordproduction.com/mpg-event-june05.html
http://mixonline.com/news/headline/p...opfler-060106/

Graham

Apogee mini dac or Benchmark DAC1
 

Andy Evans wrote:

I've spent some time in rec.audio.tubes to try and establish what this
is all about.

You could not have chosen a worse place - you will learn absolutely
nothing from that newsgroup.

Actually it's rather good once you learn to avoid the character assasinations
that plague it.


Read the Tube DIY forum on
www.audioasylum.com and you will find posts by the leading tube
designers. Try it out for a month or so. You will see a universe of
difference in the quality of engineering, debate, knowledge and
information. Plus it's leading edge - people experimenting with ideas.

Ok. I will. I normally only post on pro forums and groups but I'll certainly
give it a try.

Graham

Apogee mini dac or Benchmark DAC1
 

Andy Evans wrote:

Please pull your head out of your arse !

It's up to you if you want to lower the quality of debate and make
senseless comments - I'm quite happy to debate this on a rational level.

Does Mozilla normally put the quoting arrows on the rhs instead of the left ?

Or are you simply choosing to be perverse ? You would have considerably greater
credibility if you adhered to Usenet norms.

Graham

Apogee mini dac or Benchmark DAC1
 

Andy Evans wrote:

So, do tell me. In your opinion how does the tube stage influence the
sound exactly ?

Why do you expect me to describe sound in words - why not go and listen
to a variety of tube output stages then you can find out for yourself.

You mean you have no answer to offer ?

So, do tell me. In your opinion how does the tube stage influence the
sound exactly ?

Is that too tricky ?

Graham

Apogee mini dac or Benchmark DAC1
 

In article .com,
Andy
Evans wrote:
Precisision and linearity can be measured scientifically and
objectively. The remainder are in the ear and brain of the listener.

So? The purpose of the DAC is to listen to it.

The purpose of the DAC is to reconstruct an analogue waveform as defined by
the series of sample values. The correspondence is uniquely defined if the
series of samples was correctly recorded. This much is simply a matter of
Information Theory and engineering. Also as you might expect from the phase
for which 'DAC' is an acronym.

The purpose of the *listener* is to listen to the results. So far as I can
tell, no DAC has awareness, or any ability to actually listen to anything.
:-)

Up to the listener, of course, if they actually want specific examples of
waveforms to be accurately reconstructed, or if they want them altered in
specific ways. Thus a real DAC may be designed to systematically alter the
results if the designer so decided. But the DAC still isn't actually
listening. :-)

Slainte,

Jim

--
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