I've got a Marshall 3520 Integrated Bass System 200W head that I really like, but I'm finding that it is too loud for home use. The volume controls (separate treble and bass volumes) are barely above zero and the slightest movement takes it from silent to way-too-loud.
Can I reduce the output power in half by eliminating two of the four output MOSFETs in order to make the power amp like that of the 100W 3510 model? I've attached power amp schematics of these two models and encircled the differences between the 3510 and the 3520.
If so, would this be as simple as desoldering one leg of R17 and R22 while leaving everything else in place and undisturbed?
Can I reduce the output power in half by eliminating two of the four output MOSFETs in order to make the power amp like that of the 100W 3510 model? I've attached power amp schematics of these two models and encircled the differences between the 3510 and the 3520.
If so, would this be as simple as desoldering one leg of R17 and R22 while leaving everything else in place and undisturbed?