haven't heard them before on a setup, but a friend might get them real cheap. What about the SPl or SQ, i know pioneer Sq is not good, but what about a good all around sub for the money?
My friend had a set of IMPP they were ok only had 600rms for them so nothing special. I run the Premier subs and they I hit 145.9 with 1krms each (2 subs)they are loud buggers