I'd get the 7500,I had the 7125 and it's a good amp but the 7500 seem's to give the mid's and low bass a tighter puncher hit.My speakers are very efficent(the lowest being 98db)so with 200watts you never worry about clipping the amp.My 7500 runs very cool on movies and gets just warm on 5 channel music at high levels.That's just my .02 !!!!