Bose DS40F Ceiling Flush mount Speaker The Bose DS40F, where the F stands for Flush Mount is a very high performance in ceiling speaker. although you can purchase a Pendent kit and have it hung from the ceiling, but most uses are when its actually installed in the ceiling. The DS40F is a great speaker for Restaurant Bar areas or Church Foyers where they want more than the usual background music.. The DS40F has more power and low end and make a bigger sound impact. It has a very wide 125° conical pattern with a frequency range down to 70 Hz. Full-range loudspeaker with a single 4.5" (114 mm) driver in a ported enclosure to deliver a 125° conical coverage pattern and clear, intelligible music and speech reproduction for flush-ceiling or pendant-mount applications Integrated multi-tap transformer with innovative thumb wheel adjustment for easy-to-change tap setting from underneath the loudspeaker grille Shortcan design allows installation in shallower ceilings with minimum depth of 6.4" (163 mm) 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 ceiling-mount bracket, adjustable tile bridge, pendant-mount kit and square grille Applications Retail stores Restaurants and bars Concourse Transportation facilities Resorts and hospitality venues Houses of worship Ballrooms Specification Frequency Response (+/-3 dB)80 Hz - 17 kHzFrequency Range (-10 dB)70 Hz - 19 kHzNominal Dispersion125° conicalLong-Term Power Handling40 W (160 W peak)Sensitivity (SPL / 1 W @ 1 m)87 dB SPLMaximum SPL @ 1 m103 dB SPL (109 dB SPL peak)Nominal Impedance8 Ω (transformer bypassed)
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