Bose Professsional MB210-WR Outdoor Subwoofer without Handle Bar Cables & Box
Enclosure Material Exterior-grade plywood. Max SPL @ 1 m 117 dB (free field), 123 dB (wall/ceiling) continuous / 123 dB (free field), 129 dB (wall/ceiling) peak. Sensitivity 90 dB (free field), 96 dB (wall/ceiling).