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There are auto shut-offs that are factory defaults but 30 seconds sounds like a ground fault. Go over ALL of your wiring again, wire by wire. *Check polarity on every speaker*. If you don't find a problem, have some else do it again. 30 seconds is to short for the auto shut-offs I think.
Sorry, there was a problem. Please try again later.Probably a lemon or your settings are set that way! Mine never did but I never adjusted settings, if any.
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