Hi there, I've looking around for a new amp. I gave up on distortion in the amp and went for a decent overdrive pedal. That said, I just want a good sounding rock-amp. My eye felt on the Ampeg B4R. It's got many options and I know some of you guys up here own this amp and use it exstensively. This amp is a bi-amp model. The manual says the next thing: OUTPUT POWER RATING 1350 Watts Mono-Bridged @ 4 Ohms (1000 Watts Continuous) 840 Watts Mono-Bridged @ 8 Ohms (680 Watts Continuous) 2 x 675 Watts @ 2 Ohms (500 Watts Continuous) 2 x 420 Watts @ 4 Ohms (340 Watts Continuous) 2 x 255 Watts @ 8 Ohms (205 Watts Continuous) There's 3 bi-amp options. I'm not yet interested in the mono-bridged options, but I might be in the future. In the beginning I'd like to use this amp with one Cabinet. Coudl I use only use ONE of the two 4 ohm channels? That way I could easily drive a 4x10 cab (somthing around 400watt power handling) with one of the two 340watts channels. My question is: is this good for this amp? I mean, can I use one of them two channels when in stereo mode without breaking the amp? Or does this amp always needs or two cabs connected, or one cab that can handle the huge power from the mono bridged mode? Could someone clear this issue out?