I recently purchased a SS-10 10 inch subwoofer along with a pair of SuperZero 2.1 mini monitors direct from NHT. The performance of this subwoofer is absolutely amazing, Bass is tight, clean, and well defined down into the lower 30 hz range. Also, the SS-10 blends seamlessly with the SuperZero 2.1's. Together they form a fantastic sounding full range system. So far I am extremely pleased with my new NHT speaker system. One of the best sounding systems I have ever owned. NHT makes great speakers.