Bose MB210compact subwoofer. Bose Professional MB210 compact subwoofers are designed for background/foreground music and small sound- reinforcement systems that require low-frequency extension down to 37 Hz. The MB210 subwoofer features two (2) 10- inch high-excursion woofers, derived from the award-winning Bose Professional F1 subwoofer, in a compact, Baltic-birch plywood enclosure optimized for fixed-installation applications. Featuring outstanding performance to size ratio, the MB210 is designed to complement Bose Professional loudspeaker lines, such as FreeSpace®, Panaray®, and Roomatch® Utility, with additional bass impact. • 2 x 10” high-excursion woofers – for high-output bass in a compact enclosure. Transducers derived from award-winning Bose F1 portable, powered subwoofer • 500 W long-term power handling – for high sound output and reliability • Low-frequency extension down to 37 Hz • 123 dB maximum continuous SPL, 129 dB peak SPL • Baltic Birch plywood enclosure – with compact size for installations. Taken out of insulation good condition with minor wear & tear. Been controlled from sound-web BLU-100 never been over driven. Sold as seen. Collection only. Can be tested on collection. Amazing sounding sub