402d is rated @ 900 watts @ 8 ohms bridged, FWIW.
http://www.crownaudio.com/amp_htm/xls.htm
it is nothing special, but it runs cool and puts out the power, and isnt terribly heavy. no processing or peak-limiting, the latter of which could make it dangerous as an instrument amp. i dont find the fan noise to be any worse than the average forced-air-cooled power amp. we actually have a few of the xls amps in the PA, and so far they have performed flawlessly and reliably, while producing good power. my biggest beef with them is that they arent rated to be bridged @ 4 ohms. musicians friend says you can, but crown doesnt list specs for that type of operation. sure would like to run a couple of them mono into the subs... in fact, that probably means the next upgrade for the system will likely necessitate ditching these amps for something else. but jeez, at the cut-rate prices they are going for now, they will be hard to beat, value-wise. $200 shipped for the 402d. however, for anything but an instrument amp, i would recommend the extra $100 for the 802d. 800/2 into 4 ohms, and i promise it will do every bit of that!
http://pro-audio.musiciansfriend.com...ier?sku=481587