I am one of the few people to have actually heard one of the new A series subs and i can tell you that they are an absolutly amazing sub. Very similar sounding to the ID Max, probably moreso than the Stereo Integrity Magnum D2 that i previously mentioned for the simple reason that it has a bit more low end than the Magnum D2. All three are so similar sounding it is hard to tell the difference between them, but my personal pick is the E12A.... it has more low end than the similarly priced Magnum D2, and it is nearly identical in performance to the much higher priced ID Max, except the A can probably take a good amount more powe than the max since it has a 3 inch coil compared to the 2 inch on the Max.

I LOVE the A series.

 

With a mono amp you will want 2 subs other wise you wont be able to bring down the resistance to 2 ohm. Or you can get a dual 4 ohm sub as well. A alpine type r or two mtx 6000 series subs would work wonders. good luck