JL states that the 12W3v2 can handle 300W RMS. My amp was only putting out 265W continuous, which is less than the sub can handle, but still OK. I had the W3v2 (dual 2Ù voice coils), and when you wire them in series it's a 4 ohm load. Having dual voice coils doesn't matter much if you have a single subwoofer. It gives you more flexibility when wiring multiple subs. I'd say try to go for an amp that can push 300W continuously. You could even use a more powerful amp, but don't set the gain too high.


Make sure you have an adjustable crossover as well. That Rockford amp I used only had a selectable low pass or high pass crossover, but I couldn't select which frequency I wanted as the limit. 80Hz is OK, but I would like to be able to vary that to tune my system better.


Let me know what amp you decide to go with, and let me know how it sounds. Maybe I can talk my brother into giving me that sub back!