ACTUALLY! I would not get the AP, CA, or BA lines. I've had bad experiences. Spend a few dollars more and go with the CL1200 (clarus line). IMO, it is much better and worth the extra money...i'll stand behind the CL line anyday of the week...i've used countless for other's low budget installs...and ABSOLUTELY no problems. On the other hand i've had problems with the CA/AP/BA lines...
SO, go with the clarus CL1200. It will put out 900x1 @4ohm bridged...i have a friend that's been bangin it everyday for over a year...no problems! peace
NG