Hmm. Maybe one of y'all smart folks could help me out here.
Like I said, '82 Peavey Combo. Sounds amazing, still. But WAY too fuckin' loud to play in a small California bungalow with a raised foundation. (Or just about any domestic environment.)
So what I've been trying to do is have the Pre Amp Out go directly into my audio interface, and then that Y-cable there is plugged into the Power Amp In. The Y-cable is connected to nothing. So now the only thing the power amp is trying to amplify is whatever static happens to be in the air or around the place.
And this works fine... for a while. But after some time, you start hearing static coming out of the speaker now and then... and then a big, massive POP. It's SUPER loud, and defeats the whole purpose of trying to silence the thing.
What can I do? Adjust the ground? Do they make 1/4" plugs that are more isolated/insulated that could do a better job?
What the Power Amp In is supposed to do is to work with the crossover -- you put a patch cable coming out of the crossover, and then into the port. Maybe I use the crossover low, turn the cutoff frequency all the way down, and then just ... well, expect lots of low subs coming out or something? No idea. Or maybe have both crossover ports going out to nothing.
Just need some way to mute the speaker for domestic use/practicing so my wife and cats aren't disturbed from their nap, but I can still get that sweet, sweet preamp tone.