I have added a Rotel 1565, new 4ohm polk lsi15 and am using the pre-outs for this Yamaha. Yet, it does a shut down at a particular dynmaic point in a movie. This happens when the volume is at -10db. However when I lower it to about -7db, there's no shut down. Does anyone know what is going on? I've tried disconnecting 4 channels of the pre-outs going into the rotel and trying one channel at a time.