Mnyb wrote: > With correct system gain digital volume would be the best solution > ,actually the only workable one if you want *exact* volume tracking > between all channels , you ever had a preamp where the volume is > slightly higher in one channel on low volume ? > You don't want the balance between drivers to shift with volume . > There is possible some ( expensive ) step ladder solution too possibly > with laser trimmed resistors or something . > But it can be done with zero investment in hardware just more software > . > > My own meridian hometheater would serve as a good example in total > including the subwoofer channel it would be 12 volume controls ! And > they should all track perfectly at all volumes :) > > A very good project indeed , I wish I had time to indulge in such things > .
Yes, it seems obvious now in light of your explanation, and indeed I poked around on the miniDSP site and found a confirmation in a forum thread that the volume control is done in the digital domain. This means of course that the potentiometer doesn't have to be 'audiophile' grade - it's not in the audio chain. My own pre-amp is one of these resistor ladder designs (http://www.eijndhoven.net/jos/relaixed2/) which I built as a first foray into circuit board assembly. ------------------------------------------------------------------------ chill's Profile: http://forums.slimdevices.com/member.php?userid=10839 View this thread: http://forums.slimdevices.com/showthread.php?t=96407 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
