impedance question


Hi I'm trying to understand ohm's and power. My b&k 200.5 is rated at 200 watts per channel at 8 ohms and 375 at 4 ohms. Now some of my speakers are rated 4 ohms and some are rated at 6 ohms. My question is does the amp just feed the power differently to each speaker accordingly? ie, 4 ohm speaker will receive 375 watts and the 6 ohm somewhere between 200-375?

2nd question is i had my sub woofer wired parrellel to my mains, everything seems to be working fine but I just read that I really put a load on my amp by dropping it to 2 ohm? is this correct? Is this a bad thing to do? I don't know how else to wire my sub because for some reason my rca sub output on my receiver doesn't seem to work. any suggestions?
monterey

Showing 1 response by ahendler

If the sub is in line with the speakers set at zero. If some other position experiment with the phase setting. Why don't you feed your sub from a line output from your pre to the high level or line inputs on your sub? It almost sounds like you do not have a self powered sub. Is this so?