This is a review for the Atlantic Technology SB212 10" sub woofer that I use with the System 2200, I have nothing but good to say about it, I use it in a 17x13x9 livingroom and this thing puts out very deep and undistorted bass, more than I thought it would as the sub I was using prior too was the Polk PSW 505 with a 12" woofer, but I got to say the Atlantic goes deeper and cleaner, the polk was not that good sounding to me.Overall very happy with my purchase, although it did cost more than other 10" sub woofers, but I guess you get what you pay for, as the polk was half the price as the Atlantic but the Atlantic blows it away, thanks Atlantic, for an unbelievable sound quality with the whole system(I'm using Atlantic Technology System 2200).