I'm definitely no audio guru, but I learned a lot between the first system we put in my gf's 02 escape until the time it was stolen and we put new stuff back in. Went with much higher quality parts, although they were all rated at lower power/output than anything we had in there previously, also learned the proper way to wire everything... what an amazing difference.
Running a single JL 500/1 power two JL 12" subs (of which exact models slip my mind at the moment) and this little amp fires those subs really well. We could step up amp size, but this was a more cost friendly build. Actually picked the amp up used from a member on PSN at the time. I made sure that the amp output and the wiring coincided with sub selection to match the OHM's for the best quality sound. Really helped a lot.
Again, I'm audio retarded though, but a little bit of research helped me a ton, and I've been very satisfied with the JL stuff.