bose uses small speakers, hartke as well. i guess my point is small speaker designed for bass gives you an element that large ones don't and quite frankly I perfer 10s to all other size. The sub woofer on my entertainment system is a 6 incher and it sounds better then some 12inch bass amps.
as for the nemesis never dealt with them but I feel that any product built under a large company meant to be cheaper is still a great product, and something I'd want.