Downunderwonder

Should be fine taking the lead from the desk to house DI and plugging it into yours. Not really any point to going bass, your DI, their DI, desk.

So, the cabs ran out of headroom; or the amp ran out of headroom? Either way rehearsal is way louder than needs be.

Probably the Sumo has insufficient HPF, or none at all.

I think if you plugged in a 250W Trace Elliot amp, which is around 160w @8 ohm, it would get very very loud. Try your current amps out before over thinking it.

Another Stagg starter. I kinda wish I had kept it. The purists can say it sounds like a giant fretless all they like. It sounded very DB to me so long as I kept the mwah under control.

Win! I'll take itchy hypersensitive over dead any day. They must have done a spot on job of reattaching it.

Ensure the combo jack follows the tip positive speaker outward motion convention. Aka 9v test.

I bought a clip on tuner. But only because my pedal tuner died. Still in!

Bill will tell you not to build that for bass guitar. It is a home audio enhancement device. Bass cabs may say they go to 35hz but it's almost never 35hz that you can hear.

Forget combos unless it is combo plus extension and trolley.

I did a bit of small venue sound for other bands once upon a time. "Turn up the vocals!!!" Me, pointing to desk of just single fader for vocalist engaged and redlined output. "Feck they are loud aye!" Me, nods.

Yeah. My head exploded before I got to the clarification. How do we know if it is the guitar monitor or the PA doing the feeding back? I like this idea. But instead, how about a remote control on the drummer? Drummer too loud, volume pedal down his IEM. Drummer too quiet, turn up his IEM. Or a chain around his neck going up to a pulley on a heavy stand. Too loud? Stand on the up lever dragging him up off the kit so he can just reach. What a muppet.

It's a conspiracy between the drum player and guitar player.

The cure to feedback is never more volume.