Experience powerful, accurate bass with this Used Bose B1 Bass Module, an unpowered subwoofer in excellent condition. Designed to complement Bose L1 portable PA systems, the B1 delivers tight, punchy low-end response ideal for live performances, DJs, or compact sound setups. It features two 5.25" high-excursion drivers housed in a lightweight, rugged enclosure for dependable performance and easy transport. The B1 operates passively and requires connection to a compatible Bose Power Stand (such as L1 Model I or II) for proper amplification and EQ. Whether you're enhancing vocals, instruments, or full mixes, this subwoofer adds the depth and clarity your sound deserves.