BOSE FreeSpace3 - II Acoustimass Module flush-mount subwoofer

BOSE FreeSpace3 - II Acoustimass Module flush-mount subwoofer Designed to provide flush-mount bass augmentation for new and existing background music systems.Features one 5.25" (133 mm) woofer that delivers deep bass down to 40 Hz without audible distortion.For indoor applications only.  Technical Summary Frequency Response (+/-3 dB) 50 Hz - 230 kHz Frequency Range (-10 dB) 40 Hz - 315 Hz Nominal Dispersion Omni-directional below 200 Hz Long-Term Power Handling 70/100 V: 200 W (800 W peak) mono Low impedance: 50 W (200 W peak) per channel stereo or 100 W (400 W peak) mono Sensitivity (SPL / 1 W @ 1 m) Per channel: 76 dB SPL (Mono: 79 dB SPL) Maximum SPL @ 1 m Per channel: 96 dB SPL (102 dB SPL peak) Mono: 102 dB SPL (108 dB SPL peak) Nominal Impedance 6 Ω mono direct (transformer bypassed)   Key Features Low-frequency loudspeaker featuring one 5.25" (133 mm) woofer that delivers deep, non-localized bass support down to 40 Hz without audible distortion. For flush, ceiling, pendant and wall-mount applications Acoustimass speaker technology filters out audible distortion to deliver non-localized bass Designed to work with the FreeSpace 3 flush and surface satellite speakers, or existing systems where additional bass reinforcement is desired Module design allows parallel connection of multiple bass modules and can accommodate two or four FreeSpace 3 satellites per bass module Plenum rated for use in air handling spaces (with optional plenum cover) Selectable 70/100V or low impedance with transformer tap adjustment under speaker grille