There are no output clip lights on the L1--just input. I've never cranked mine past the 11 O'Clock position, and that was for a huge outdoor job. I guess you could get the system to distort, but I've never had to play ear-bleed volume levels since purchasing the system, so I don't have any first hand knowledge on what level you need to attain to cause it. Nigel's a rocker--maybe he can shed some light on the subject.

Cheers,

Gary