Ive been doing some research as I prepare to buy my first good rig setup. Im going with a preamp, poweramp, speaker cabinet setup. At this point I already have an ADA MB1 preamp and Ive decided to get an SWR goliath 4x10 with 8 ohm impedence. AS far as the power amp Im leaning towards a Carvin but Im a little unsure about what kind of power I should look for from the amp. People have told me to go with 1.5-2 times what the max power of the speakers are per channel. The goliath has a 750 watt RMS max. So I figure I would want the DCM2000 which will provide 1400 watts of power with a bridged setup to an 8 ohm cab. What Im thinking about is that in the future if id want to add another 4x10 or 1x15 do you think the DCM2000 would be enough to power both cabinets or should I count on supplying separate power amps to each cabinet? It provides 425 watts per channel at 8 ohms and 700 watts at 4 ohms. Also if both cabinets are 8 ohms does that mean that one power amp in stereo would power both channels with wattage for 8 ohm cabinets or 4 ohms since I am using two? Finally with my initial rig would having a 1400 watt amp powering the 750 watt speakers make it likely that too much power could damage the cabinet? Any comments questions or advice would be awesome and much appreciated.