I have a buddy that uses the SVS (2 of them)and he loves them, personal taste when it comes to subs. After going crazy with better than 10 subwoofers I have landed on what I feel to be one of the most musical subwoofers on the matrket, Rythmik Audio F12-SE. This is an internet only company so no overhead or sales people, rent and all the things that drive up cost. Probably more than you want to spend but worth looking at. Have you looked at the 8 inch Velodynes, the mini series, again a buddy uses one with B&W monitors and the sound is very nice. I think the key for you is to get a solid 8 or 10 inch woofer that will mate well with the monitors, best of luck.