Will improperly biased amp and preamp affect sound

Can anybody tell me what the effect on the sound is if the amp or preamp isn't properly biased?

royy06-14-2004 12:25am

royy OP Details Discussions Posts This discussion Message User 148 posts 06-14-2004 at 01:03am Copy Comment URL Report Comment Edit Delete Let me clarify; I'm talking about biasing the tubes.
unclejeff Details Discussions Posts This discussion Message User 1,313 posts 06-14-2004 at 03:25am Copy Comment URL Report Comment Edit Delete If you do a search in the Audiogon discussion forums on the word 'bias' you will find even more than what will follow in this thread.
justlisten Details Discussions Posts This discussion Message User 489 posts 06-14-2004 at 03:26pm Copy Comment URL Report Comment Edit Delete in my experience it depends on your setup (ie cables, tweeters,) ive owned amps which sounded great no problems, but did recently have a Jadis Orchestra Reference which made female vocals at high freqencies distort. all in all, if it is easy to do, (ie biasing pots in handy places) do it.... ive owned amps which needed quite a bit more work than that and used my ear. you can also swap driver tubes from channel to channel
jond Details Discussions Posts This discussion Message User 5,899 posts 06-14-2004 at 05:07pm Copy Comment URL Report Comment Edit Delete I would say that my experience is similar to Derrick's, my Cary 300B mono's distorted in the high frequency when the bias had wandered a bit. A quick and easy fix though. As far as preamps I've never had a preamp that needed to be biased so I can't comment there.