Hello, I've recently put together my first attempt at home theatre. With limited budget I bought a MARANTZ SR 4200 amp, and ENERGY XL 26 Mains, XL C2 centre, XL 15 rears. The front speakers are connected with very thick cable that the dealer gave me ( I think 10 gauge?) and the rears have a very long run of 10 meters each but are connected with very thin cable (I think 16 gauge). My problem is the amp going into PROTECT mode when playing DVD mode. I have been reading on the topic in the forums and have checked the wires and rewired them. My amp is not overheating as far as I can feel. I have only tested it with 3 DVD's. One being the demo disc that came with the DVD player (has previews of Mummy 2, The Patriot, Gladiator, Vertical Limit) which I played at -5 dB's and did not have any problems with. I also rented Lord of the Rings and had no problems with it. BUT when I play Harry Potter I can only reach about -15 dB's before it goes into protect mode in suddenly loud sequences. When listening to Music I can turn it up to 0dB's no problem so far it's only the Harry Potter DVD that seems to upset the amp. IS IT POSSIBLE that it is the way the sound is produced onto the Harry Potter DVD that causes this problem? Or am I expecting too much volume? I read that others felt reaching -15 dB's was pretty good. I'd like it louder myself Am I expecting too much from my amp? Could my amp be faulty? Sorry for the long post, but it's my first one. Any help much appreciated!