I tried to post on a thread from last year. It doesn't let you boost the old thread anymore. In other words it won't show up as a new post in the hierarchy of posts.This happened a week or so ago also where I did it on another subject.. Just thought I'd get the word out there. Old thread April last year: I've got a '68 Bandmaster Reverb that seems to lack treble, especially the high, presence/sparkly treble. With the bright switch on I have to crank the treble up to 7-8 to get what I would consider a 'normal' Fender bright - and I want 'Bakersfield country' bright -, and with the switch off it is downright dull sounding. And this is on both channels and through bright speakers - 12T6, C12N, 12F150. For reference, I have a friend who has a Silverface Twin with Oxford 12T6's and with the treble on 4-5, it is more bright and sparkly than I can even get with my amp, unless I crank the treble to 9 and then it just gets piercing and unmusical. Any ideas? I'm going to tag onto this Zombie thread from last year. MY BMR is just the opposite of the OP's, very bright amp. I have been going through some things on it and thought I would tackle the brightness issue. I have tried a few things, but really, not much effect. There is no way I could use the bright switch on this one. To make it sound decent I have to put the treble between 2 and 3 with the bright switch off. The Normal channel, is thick and nice. The Reverb channel tone caps are the same as the Normal channel. I have that PI coupling cap at .001uf. Maybe I should go to .005? Bias, Filters, coupling caps etc are all recent. Seems kinda crazy, it's always been this way... since I've had it. Gotta be he brightest AB763 based amp I've had.