Torn between hooking the speakers up to the sub or using the one cable to the sub and let the AVR handle the bass mgmt. The sub is a b&w 600. Please let me know the best practice. 1. Want less of a burden on the AVR 325. 2. Will I loose my .1 effects when watching DVD's if I hook up my B&W 603's to my sub. 3. I assume I still hook my center and surrounds up to the AVR, will they send info to the sub too? I listen to 80% music and 20% dvd's. Hints on crossover would also be appreciated. Thanks much.