Any recommendations on the Velodyne SPL 1200 vs the Def Tech Supercube One? I am looking for a smaller sub for a system with in-ceiling Sonance Ellipse LCR2's as mains...obviously smaller speakers so the sub will have to compensate for lack of low end from the mains. The room is 15 x 20 with 9 ft ceilings. The system will be used for both home theater and music. Any suggestions would be appreciated.....