Stevie K said: Well overdrives push the amp when they are engaged so of course the amp is pushed when the pedal is on. But I play through an 85 watt twin which is clean from top to bottom, it starts to get a very slight breakup around 10 but it's minimal and at that point is so incredibly loud that it is not fun to play, at most gigs I keep the amp at about 4 or 5 but at small gigs 3 is sometimes pushing it. As a result I have a plethora of drives and clean boost that I have to use in varying combinations to front load the pre-amp into distortion without getting too loud. Twins can be a real pain in the ass! I've tried the removing tubes trick but it makes the tone of the amp brittle and harsh.
One day I'll have it ab'd with a nice tweed era style amp, but ad if now it's what I've got, and I have yet to play an amp whose clean tones I prefer.
overdrives don't push the amp when the volume is turned down... one thing i tried today was strapping my bassman, with a dano OD between the guitar channel, and the bass channel, that turned out great.
a big problem i'm having right now is getting a good OD tone, and fuzz tone. i use a russian muff, which sounds great with the mids on the amp cranked, but that brings out the mids too much in my Duncan Twin Tube Blue... they really should've had a 3-knob tone stack, or at least a separate tonestack for each channel...