Our PA system caused real problems at a gig in a hotel last night - sound check went fine but during performance overall volume in both speakers (driven by an amp each)went down dramatically - we re adjusted the level mid set and shortly after the sound increased again. It did this periodically for the 1st hour. The 2nd set was better so we are thinking was it damp or condensation in the desk, that had dried out as the sytem had been running for a while? The PA is stored permanently in a trailer. Our system comprises of: Behringer euro desk 2 x power amps 1 CD rack All in purpose built flight case Any ideas?
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