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im getting a 12" 2ohm dvc compvr, and was wondering the best amp for it and wiring. would a mono amp be best @ 1 ohm or would a 2ch amp be better. also if choosing a 2ch amp, considering the sub is 400rms would that mean i would need 200rms x 2 @ 2ohms. maybe you guys could suggest a suitable amp for me, before i confuse myself even more.

thanks
claymore

Your easiest and cheapest solution would be a 2-channel amp that is bridgable. You would need to wire the sub's coils in series for a 4 ohm load (which is the most common stable impedance on bridged 2-channel amps).

So basically you want an amp rated for 400x1 rms @ 4 ohms bridged (which could also be 200x2 @ 2 ohms per channel).