Can someone explain to me the meaning of "Class D"?

Furthermore, I'm looking for a recommendation on an amplifier for 2 10" Subs. They're rated for 200Watts RMS, 400 Watts Peak and are 4 ohms each. So thus I'm basically looking for a 1chx2Ohm setup. I have no plans for competition and I am looking for something reasonably priced.

Thanks.




1999 SVT Contour - SOLD!!!!!!! 2003 Mach 1 =)