Polk Audio CSW100 Passive in-floor/in-ceiling subwoofer
It's easy to see why Polk Audio's decor-friendly CSW100 won the prestigious 2006 Innovations Design and Engineering Award from the Consumer Electronics Association. This subwoofer's clever construction allows for out-of-sight placement in your floor, ceiling, or even a piece of furniture. After it's installed, all you'll see is the included 4" x 14-1/2" grille, which looks like an ordinary air vent. Performance is excellent, too. You get clear, potent bass with movies and music.