Yeah, I'm considering trying 22uF there.Hopefully, more knowledgeable members will chime in, but I'll give it a shot.
Lowering the value of the cathode bypass cap for the V1a will tighten up/reduce the bass.
Right now, looks like you have a 330uF in that position.
I would email Nik he will know exactly what to do.Hi guys! I've built a Ceriatone Plexi 51. I've been reading up on some ways to tame the bass on a plexi. Even with my bass on zero, I still feel it could use less at times. Would reducing the cap I've circled from 0.022 to 0.01 be a simple method to accomplish this? Has anyone ever done it? View attachment 111666
Now, that possible issue could target the power tubes.I think what I'm looking for isn't necessarily less bass, but tighter bass. Not as mushy
I have JJ 6CA7s in it right now.Now, that possible issue could target the power tubes.
A recent example that I had was trying out EHX 6CA7s for the SV20H - mud; pulled them out in less than a hour after trying to dial in a desirable tone. I do not think a big bottle tube agrees with this particular Marshall circuit. YMMV