BOOMINGRANDPA 5,000+ posts
WOLFRAM FTW
like jeff just recommended 1600 rms for a 1200rms sub... that cab is huge amp and will require big 3 wires under hood.. but to make other guy happy he's a nice cheap 500rms rf amp if u get 500rms sub https://www.amazon.com/Rockford-Fosgate-R500X1D-1-Channel-Amplifier/dp/B00BF6HYDE/ref=sr_1_2/142-4136143-0613355?s=electronics&ie=UTF8&qid=1498947600&sr=1-2&keywords=mono+subwoofer+amp