Really the price per watt of these held me back for a while (that and the Crown 6K that I picked up last year), but I've gotta say, since these came out I've spent more in repairs and blowing up crappy chinese and Korean amps than these ended up costing me. I have still to do more testing, but initial impressions are "run don't walk!" and get you some of these. If you're wanting 1000W range they're worth the extra cost for the crossover and EQ options, and if you want more power, they're worth the reliability. I haven't had a far East built amp >1200W last me more than 6 or 7 months yet.