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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 blkadr

blkadr
739 posts
 
I once upgraded from a 200wpc amp to a 100wpc amp. The lower powered amp had much better bass. I have two pairs of speakers both rated 86db/6ohm. My 12wpc t-amp makes nice music with one, sounds shut in and anemic with the other. My buddy's Bedini 25/25 sounds awesome with Totem Ones, a speaker that can make many more powerful amps (wpc) sound constrained.
There is so much more going on beyond wpc and impedance ratings. They can only give you a limited idea about how an amp will power a speaker.
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