I decided to go with the A1200. Almost everywhere I go on the internet everyone says that you should match the RMS power from the amp and the subwoofer (and of course, same ohms too). Some recommend that the amp actually have slightly lower power.

The A1200 amp puts out 120 RMS and the sub can handle 125 RMS. Seems like a good combo to me. I'd still like to hear other opinions though.

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[Sold] 2004 X5 4.4i - Sterling Gray - Truffle Brown, Sport, Preminum, Rear Climate, DSP, Sirius, PDC, 132's (19 inch wheel), Comfort Seats
Dynavin, JL Audio Stealthbox, Alpine PDX-5 Amp