I bought 2 of these subs to use with my EV ZX-1 speakers for small live band gigs in bars, restaurants etc. The 112 Sub with the ZX-1 is a nice combination, and much cheaper than the original ZX-1 Sub.
I run a bi-amped setup with a speaker processor and 2 EV CP-3000S amplifiers, which deliver more than enough power for these speakers.
The internal sub crossover is a 1st order filter, which I bypassed since (4th order) filtering is done in the processor which sounds much better.
The result is nice balanced sound, with a quite impressive low-end given the size of the subs. Kick drum is nice and punchy, bass guitar sounds balanced over the frequency range.
Subs are lightweight and the whole set fits easily in a normal station wagon. Don't forget to buy the covers; It is easy to scratch the paint.
The internal wiring is quite thin, I replaced it for thicker wire when bypassing the internal crossover.