Hey everyone!
I bought Marshall JCM800 100W head, model 2210, and got it all repaired. And the thing is following: I think the head is too quiet!! When I put my guitar directly to input, I can turn master knob to 9-10 and other two channels also to 8-9 and you can still be in the room . But if I plug my guitar first in my ZOOM and then to input loudness is OK (at 3-4 you can feel the eartquake !!!)
I tried this with four guitars, four tubes on amplifier are OK - is it possible, that tubes on pre-amp are bad? Do you think something else is wrong/bad?
Thank's for all suggestions.
Hmm, is the impedence of the cab and head matching?
Maybe you could replace all the valves and see what happens.
"Breathe, breathe in the air
Don't be afraid to care"

Fender Strat/Tokai LS80>few pedals>Orange Rocker 30