I've compared two different amps and don't understand the trade-offs. I've decided on Amp 2 but want to make sure I haven't missed something. The first amp "doubles down" the other doesn't - at least mathematically - based on published specs. Which one is better for low level listening and better clarity? Driving B&W 802's or 803's. Amp 1: 200 W/channel @ 8 ohms; 400 W/channel @ 4 ohms; Peak to peak power - 55 amps. Dampening factor - 800 (static). Amp 2: 250 W/channel @ 8 ohms; 400 W/channel @ 4 ohms; Peak to peak power - 150 amps. Dampening factor - 750 @ 50 hz.