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Old December 21st 03, 12:42 AM posted to uk.rec.audio
Stewart Pinkerton
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Default Added a DAC to a cheap CD player - and got a result

On Sat, 20 Dec 2003 22:44:44 -0000, "Wally"
wrote:

Ian Molton wrote:

How many inputs? Any switches on the front?


2 inputs - optical and coax, but it seems only one may be used at
once.

two selector switches to choose the input (and one on the back to
select the default on powerup, heh.)

theres a switch labelled 'phase'. Wonder what that does?


Something to do with the timing circuitry, perhaps (phase-locked loop)? Or
how about some surround sound trickery on the aux channel if it feeds rear
speakers? Front/rear phasing?


It's a feature that has pretty well fallen out of fashion these days.
It reverses the phase of the output, so that you can correct for
absolute phase, i.e. when the kick drum skin punches towards you, the
speaker cone does the same. There was a big fuss about this in the
early '90s, but it's now generally agreed that there's no audible
difference.
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Stewart Pinkerton | Music is Art - Audio is Engineering