I have the 525 with JBL Studio series speakers hooked up (4 S-38's and an S-center) and also a SVS PB12-ISD/2. Using the AVIA dvd reference is around -15 on the volume. I have all speakers set to small, with the crossover set to 100hz. The problem is, if I play a movie at any volume louder then -20 or so, and if there is a sudden loud noise or explosion, the receiver shuts off. It only does it at high volume so I don't think the any speaker wires are touching (plus I checked to make sure.) Being that the volume goes to +10 should I be able to play it that loud without it shutting off? Or am I just asking too much of the receiver? And if it is too much for the receiver, would a better solution be to get more efficient speakers ( I am already considering moving up to Klipsch reference series speakers) or should I just get an external amp to take some strain off the receiver? Any help, thoughts or advice would be appreciated. Thanks!