The TS215 is a portable, dual 15 inch, direct radiating subwoofer that is designed to provide impressive low frequency impact and solid musicality. Its 4.5 inch voice coils, strong neodymium magnets, and innovative low-turbulence ports permit an optimal tuning to be achieved in an enclosure that is unusually small for a dual 15 inch subwoofer. Eight handles and an optional face pallet facilitate transport of the enclosure. An M20-threaded connector plate is centered on the TS215’s top panel for use with the optional, height-adjustable SP1 Speaker Pole. This pole’s M20 threaded bolt screws securely into the connector plate and is used to mount loudspeakers equipped with a 35 mm / 1.38 inch pole socket directly above the TS215. Four vibration isolation feet prevent spurious vibrations and “walking”. When stacking enclosures, the vibration isolators nest in recesses in the enclosure below. The recesses are configured so that enclosures can be rotated to create cardioid arrays. The input is mounted on a chamfer at the rear of the enclosure, allowing cable access without requiring additional space between the enclosure and a wall or stage. The TS215’s massive output capability rivals that of many conventional dual 18 inch subwoofers, while its compact size reduces transport costs and saves precious truck space and venue real estate. The combination of high performance, labor saving portability, and aesthetic appeal represents an ideal solution for nightclub PA, drum/side fill monitoring, corporate A/V, theatrical productions, and more. An optional rigging kit allows up to twelve TS215s to be suspended with a 10:1 design factor.