I just don't understand how all these things in a poweramps specs relate or what they are??? Whats damping factor? Whats slew rate? Whats signal-to-noise? Input impedance? Can anyone refer me to a link that would help me about this? I'm looking at Carvin, QSC, Crest?(maybe), and Mackie. I play new rock stuff and relatively loud. I want atleast 1800W RMS @4 ohms bridged mono. I want as clean as possible, with little to no distortion, and as much headroom as possible. I try not to crank my cabs to the max, so the full RMS wattage is never put into them. The rig is an Eden Navigator and an Eden D-410XLT, with the possibility of adding another 1 of these to it or an Eden 15" cab. I'm looking to spend under $1000 for it. The Carvin was the best price, $600 for 2000W RMS@4 ohm mono. Anything close to that? Thanks for the help.