Earthquake Amplifiers I've Got A 200Watts RMS Power Rating For My Subwoofer. What Should I Ideally Be Looking For To Find An Amp?

I've got a 200Watts RMS power rating for my subwoofer. What should I ideally be looking for to find an amp? - earthquake amplifiers

I connected a few links to some amps. Can you tell me what are the ideals? I have a big budget.

http://www.parallelimported.co.nz/car-audio/car-amplifiers/jbl/jbl-gt5-a402-amplifier.html
http://www.parallelimported.co.nz/car-audio/car-amplifiers/sony-xplod/sony-xmzr-602-amplifier.html
http://www.parallelimported.co.nz/car-audio/car-amplifiers/earthquake/earthquake-t-500w-2-amplifier.html