I said use a Dallas Log pot for this one. And it was rejected! Humm sounds like you want very good signal to noise and extramely low distortion is required. Well as pointed out by others, run the signals through a relay and watch the THD go wild (Unless you are using fully sheiled relays? So are you trying to sell this expensive volume knob to audiophiles? Instead of relays, look at using perhaps some analogue switches!. As for the distortion that the digial pots offer? Is 0.1% uncompensated too high? I do wonder what the HIFI manufatures use??????????????????????? Dennis -=====================================================================- Dennis Plunkett: Embedded Hardware, Software design NEC Australia DRMASS Line Interface cards TRX software ISDN interface card ph 03 9264-3867 -=====================================================================-