Need help picking an Amp for my sub?

You should get a mono amp that runs either 4 ohms or 1 ohms, one would be your best bet. as for the rms you should always get cloe to recomendation on the sub. if you drive a small car you should probaly get a capacitor 1 farad. and 4 gauge wires. should sound pretty nice. ive listed the amp i found best from best buy.