Bose® L1 Model II System with B1 Bass Module Package Portable PA system with two-part 24-speaker array, bass module, power stand with amps, cover, and carrying bags at Crutchfield
L1 Model II with B1 Bass - Bose L1 Model II with B1 Bass - Audiofanzine
Bose 351964-0010 B1 Bass Module for Bose L1 Model I and Model II systems