Once again, I have noticed a newly available product and I don't think that anyone here has posted it yet. The Kiega 1000 watt class D amplifier has just become available over at Madisound. Take a look: http://www.madisound.com/kgnd.html I think that it goes without saying that this is the answer to many subwoofer DIY'ers prayers. Yes, there is certainly cheaper power available from pro-amps, but 1000 watts of Class D power for under $600 in a plate amp is really fantastic to finally have available. I have been waiting for this to become available for some time. I have owned several different Pro amps from Crown etc. and while they have all been great, I think that I will just be buying these from now on. No fan noise!!! I have to give a big thumbs up for Madisound. I have bought tons of stuff from them and I am glad that I can finally give them some of my subwoofer business too. Dang, between this and 4 of those new PR's from Parts Express, I have run up quite a tab this month!!