I have two RE Audio 12d4 SE-X subs. Right now I have them running of an audiopipe APSM1300 amp. I really want to give them the power they need, so I need some REASONABLE recommendations for amps! I am 15 years old and don't have the biggest wallet! Under $200 would be great! RMS of 600 watts. Per sub. Dual 4 ohm. Thanks for the help!