Ive got an 8 ohm g3 cab which I love. Its loud, small, tight and punchy on the low b. I'm driving it with a recently purchased soundtech ps802 power amp bridged at 8ohms. When (if) we play bigger venues I would like to hire another g3 cab to stack on top for the look and the volume. I'm concerned that the ps802 wont have the balls to drive 2 cabs. Should i get a cheap light power amp i could use to drive the second g3? Any recomendations? Will the ps802 do the job? (havent tested it yet) Is a stereo power amp 2 separate amps? IE: Can I run 400 watts from ch 1 into 2 8ohm cabs, and 400 watts from ch2 into a 4ohm cab? (3 cabs total) When an amp is rated at 400watts at 4 ohms, if you connect two 8 ohm cabs do they get 400watts each or share the 400 (200each).