Bose Freespace DS 40SE Speaker Surface Mount Loudspeaker 160 W peak 321279-0210 White Brand New; Factory Sealed. Full-range loudspeaker with a single 4.5" (114 mm) full-range driver in a ported enclosure designed for surface mounting in foreground and background music and paging applications Simple 1- 2- 3 installation system. Mounting hardware allows for horizontal and vertical orientation with adjustable pitch or yaw Integrated multi-tap transformer with innovative thumb wheel adjustment for easy-to-change tap settings from under front end cap Shared voicing across entire FreeSpace DS product family enables DS 16, DS 40, and DS 100 loudspeakers to be integrated on the same system and maintain consistent tonal quality Supported by a suite of accessories, including wall-mount bracket, ceiling-mount bracket, pole-mount bracket and junction boxes Frequency Response (+/-3 dB) 80 Hz - 17 kHz Frequency Range (-10 dB) 70 Hz - 19 kHz Nominal Dispersion 125 H x 125 V Long-Term Power Handling 40 W (160 W peak) Sensitivity (SPL / 1 W @ 1 m) 87 dB SPL Maximum SPL @ 1 m 103 dB SPL (109 dB SPL peak) Nominal Impedance 8 ? (transformer bypassed)