I was wondering about one thing.. last night we were auditioning a new singer and just before he showed up our power amp blowed up.. so we couldn´t use our singer rig.. so took the chance of plugging the singer in my bass amp too. so here is the real deal. I have ABM500RC EVO wich has two inputs low/high, i play active bass so i´m using the low input and i plugged the singer in the high, so yesterday i were using the both input at once. is this ok, or is´t possible to damage something wile doing this. when the both input were used the input level meter nearly wasn´t moving so i couldn´t see if i was driving the amp too much..