Hi it's an older amp, By Crown,Ive had it a long time im a drumer and I use it as a practice amp in my studio here at home so it never gets moved.Now when I turn it on the amp starts it startup and the number 1 channel the yellow light stays on and the 2 green lights start turning on and off and it makes a crashing noise from just that number 1 channel or the right side,even with just the speskers pluged in,can you tell me whats wrong with it ,Thanks Dave,P
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