[Drew68]

That’s why Perry went off. “The crowd was jeering and pointing at him, shouting, we can’t hear you!” The stage volume was too loud, overwhelming the Mains.

Sounds like a mixing problem.

Dave Navarro's live rig these days consists of two Fender Twins and two Marshall JCM900 half stacks (a primary and backup for each).

While these guitar amplifiers are ungodly loud, using them on stage is not without precedent. Full Marshall stacks used to be par for the course for almost every live rock band.

[SaxxonWoods]

Yeah, I used an Acoustic 360 was for my bass in the late ‘70s on tour (outlaw country). Now I like to play fretless at low volume, it’s much more musical and expressive.