About a decade ago I picked up an SVT-410HE, I had a couple heads that were 100-300 watts, but I never achieved enough oomph out of them. I'm thinking about picking up a power amp, but I'm not sure how much power I really need. This Cab is 8 ohms, and I've also pushed around the idea of picking up a 15" 8 ohm Cab. Does running a stereo amp keep those at 8 ohms or will they be 4? I've had my eye on the Carvin amps, any suggestions??? Thanks in advance.