Bose Sub1 Bass Module for L1 Pro Portable PA Systems Features:

• Compact subwoofer for portable PA systems
• 480W Class D amplifier delivers low-end down to 40Hz
• Slim 7-inch x 13-inch Racetrack driver matches the performance of larger traditional speakers
• Optimized EQ setting for S1 Pro makes dialing in your PA a piece of cake
• Includes SubMatch cable for fast connection to the Bose L1 Pro32 system
• M20 threaded insert for mounting to an optional Bose adjustable speaker pole