The IWS105 adds powerful bass to in-wall systems without taking up a single square inch of floor space. By putting the neodymium magnet inside the speaker cone, we slimmed the woofer so the IWS105 fits flush in a wall. It sounds like a conventional sub, but it’s practically invisible. Add the M3 amplifier to complete your in-wall subwoofer system. To power the IWS105, use our M3 subwoofer amp. The M3 goes in your equipment rack and connects with in-wall speaker cable. To get tighter bass and minimize transmission of sound into other rooms, add the BB-IWS10 back box. No matter how you set it up, the IWS-10’s 36 Hz response and 250-watt power handling ensure you’ll get great bass. Includes Thin-Bezel Grilles held by Neo Magnets.