Hi everyone! I own a Line 6 Bass Pod XT Live with a built in crossover and am looking to buy a 2 channel power amp to bi-amp my 2x10 cabinet and 1x18 cabinet. Now one of the first questions: What wattage region would you recommend? The 2x10 ashdown draws around 200W @ 8 ohm and the SWR 1x18 about 400 @ 8ohm. I guess the logical thing would be to go for 300 watts per channel @ 8 ohm right? Also, with a 2-channel power amp, what happens with the impedances? Is it like on my current amp? 2x8ohm in parallel=4 ohm? Or will the amp run at 2x8 ohms because of the 2 separate channels? Pardon my electronical ignorance, it both kind of makes sense in my head Also is there anything I should look out for in power amps in particular? I've never bought JUST a power amp so maybe I'm overlooking key features? How about this one? http://www.sessionmusic.co.uk/product/featured/Peavey-IPR-1600-Power-Amplifier.aspx Puts out around 300W per channel @ 8 Ohm. I know I will get people saying it's not worth it etc. I've been wanting to try this for a long time and I'm going to, if anything then for the experience! Thank you very much in advance!