No, I'm not saying that the analog outs are better than a good external
DAC. I'm running the I2S stream inside the SB3 into my own DIY DAC
which is sending a master clock back into the SB3 and reclocking the
I2S data just before the DAC chips. The output of this DAC is going
directly to my DIY power amp. I adjusted the input sensitivity of the
amp so the output of the DAC at full signal is as loud as I will eve
want a transient etc. 

With this setup going direct from the DAC to the amp sounds better than
going through the preamp. I am NOT running the volume control down in
the tens or anything like that, its usually running in the 30s, under
those conditions the dgradation from not being at full volume is less
than the degradation of the preamp. So basically I think I'm saying
that the degradation in sound from using the digital volume control is
not very much, its definately there, but using an external preamp is
even worse, even a very good one.

As to the analog outs direct, yes they are not as good as going through
my own DAC (which cost MANY times what the squeezebox cost just in
parts), but they are actually pretty good. Being fed the external very
low jitter clock actually significantly improves the sound over the
stock unit. Other analog out mods can bring that up even more. Its
still not as good as the synchronous relocked external DAC system, but
actually very good, much better than ANY other digital system I've had
in my own system. Even straight out of the box stock, with only a
linear supply it surpasses most of the other digital stuff I have. 

I'm very impressed with what SD has managed to achive for such a small
price in a massed produced device, way better sound than it has any
right to be. The thing that really drew mew to this device was the
architecture, they have designed it so it has significantly lower
jitter than anything else anywhere near its price point, and the
architecture is such that it can be made even lower with better parts
without having to change the basic architecture. (which of course is
what they have done with the transporter) Thats not true of other
devices. Of course jitter is not everything, but it is a major part of
the whole, if you don't get that right you will be limited by what you
can do with the rest. 

John S.


-- 
JohnSwenson
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