Do tube pre-amps need bias adjustments?

I'm new to tubes. I'm thinking only tube power amps need bias adjustments, not pre-amps, but I'm not sure.

reedthis11-01-2007 2:52am

musicslug Details Discussions Posts This discussion Message User 430 posts 11-01-2007 at 06:55am Copy Comment URL Report Comment Edit Delete you are correct
ssglx Details Discussions Posts This discussion Message User 203 posts 11-01-2007 at 08:26am Copy Comment URL Report Comment Edit Delete I don't think they do. Did you get your AE-3 MkII?
reedthis OP Details Discussions Posts This discussion Message User 7 posts 11-01-2007 at 05:16pm Copy Comment URL Report Comment Edit Delete Ssglx, Yup, got it yesterday. Sounds terrific! Thanks, everyone, for the confirmations.
mark Details Discussions Posts This discussion Message User 42 posts 11-10-2007 at 02:37am Copy Comment URL Report Comment Edit Delete I was surprised to discover that my BAT VK-31 preamp does have bias adjustments. When I sent it back to the company to be upgraded, I was told that the technician biased it for the NOS tubes I had installed in it.
reedthis OP Details Discussions Posts This discussion Message User 7 posts 11-12-2007 at 04:58am Copy Comment URL Report Comment Edit Delete Well, I guess I don't know anymore than I did when I first asked the question, then. Oh well.