Mark Lanctot;169067 Wrote: 
> Ceejay: I'm curious how you know this.
> 
> I'm not at all suggesting you're wrong, but I'd like to know how to
> determine this myself.  If you look at all the manufacturer literature,
> they'd have you believe every one of them with a bypass mode is pure
> analog bypass.  Yet the volume control always works in this mode, but
> most of these volume controls are encoders rather than potentiometers. 
> I'm not fully versed in electronics but I don't know how an encoder
> could be used in a fully-analog circuit for volume control.

Well, "know" is a strong word... I've not examined the circuits. But I
did search the internet extensively and found some statements that
seemed to be credible which stated this.  Interestingly in relation to
your earlier post about 2.1 vs 2.0 ... there was an additional claim
that in analog mode the processor actually switches to an analog method
for filtering and driving the subwoofer, so you could get 2.1.

There is of course a lingering doubt in my mind, which is perhaps one
reason why I've ditched the Denon 2805 as an amplifier for my
Transporter and gone for entirely separate 2ch/5.1ch setups!!

The only thing I can assert confidently is the entirely subjective
judgement that my SB2 sounded better driving the Denon in analog mode,
which I think was the original question!!!

As for the volume control, its surely not hard to construct an analog
electronic volume control which is driven by a digital control source
(I'm fairly sure I remember designing such a thing myself in the very
distant past!)(remember that its only the actual signal path that has
to be analog)

Ceejay


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