So my band had it's first show last night. I played my Carvin R600 bridged into a swr 115 & a swr 410. Master volume was between 1 & 2. Kept shutting off on me (going into protect mode?) I would turn the power switch off then back on and it would come back on. I believe it was over heating. I've gigged it many times but I always used the Bi-amp mode. Now what?