I have a very delicate balancing act I need to accomplish. With a very small treble cap and a very deep slope I only need to lose a couple decibels of treble at the knee. It can't be done before the tonestack and I don't want to snub the circuit over plates or from mixers. I am not trying to dull the amp, only flatten the treble response very slightly earlier.
Just want to hear a consensus view on creative ideas how to balance the bite.
Amp is a monster. I want to be able to drop the gain even more but still have the treble pickups sing.
Whatcha thinkin'?
Pres is 12k tail 5k/.1u and 100k on the 4R. Treble cap is tiny, slope is huge. I think that is all you should know for this imagineering experiment.
Signatures have a 255 character limit that I could abuse, but I am not Cecil B. DeMille.
Moved a couple wires. Shortened one. Used shielded wire from master to PI. (about 2 inches) and rearranged bright cap switch terminations. These were areas almost ringing when idle. Solid move. I ended up removing a small snubber over a plate to get back a little of what had been previously *too much*.
I have a discovery tool I might have mentioned a couple times way back. A little steel spatula. Find-A-Field. I am worried to suggest you make one because it might also become a voltage detector..
... and that would be very bad.
Signatures have a 255 character limit that I could abuse, but I am not Cecil B. DeMille.
I have always thought to approach high gain builds like this: put coax in from the beginning where you know it is needed and change wire runs to coax later to get the amp to calm down. The coax kills highs with every inch, so I try to use as little as possible til I know I need it elsewhere. On the recent #34/#36 amps I have found that they need more coax, not just for the oscillations but it reduced the treble to a more pleasant level.
"Education is what you're left with after you have forgotten what you have learned" - Enzo
