I appreciate all the help and input. I had a two channel 550 watt amp already. (Peavey 8.5) so I built a 5ft enclosure tuned to 20 hrz with a 450 watt rms 12" speaker I already had. (Bass for auto industry from 15 years ago when I was even more stupid). The other 550 side I'm gonna use for a mono switcher that i had to send signal from the B from my 950 to the 550 side, to three sets of other speakers ran to my Lani, garage and living room. It works out to a 4 ohm load on each side at 550 watts. But to get the 4 ohm on the B side I have to run two sets of the other 12" speakers in the the other rooms. (16 ohm 12" speakers)