Check the listing for details. BOSE-040148 FREESPACE3 15" FLUSH MOUNT BASS SPEAKER BLACK new!!~. Color: Black, Condition: New. Listed at 299.00 USD. BOSE-040148 FREESPACE3 15" FLUSH MOUNT BASS SPEAKER BLACK new!!~ Frequency Response50 Hz - 230 kHz (+/-3 dB)ColorBlackBrandBoseConditionNewFrequency Range40 Hz - 315 Hz (-10 dB)Loudspeaker EQRecommendedOverload ProtectionPTCTransformer Taps(70/100 V) 25 W, 50 W, 100 W, 200 WDriver Compliment5.25" (133 mm) dual voice coil low frequency driverEnclosurePC/ABSGrilleExpanded metal grilleEnvironmentalIndoor use onlyConnectorsMulti-position screw-type barriersDimensionsOuter flange diameter: 15.4" (391 mm)Depth: 7.5" (190 mm) ,Ceiling hole diameter: 14.3" (362 mm)Ceiling Thickness Maximum1.8" (48 mm)Nominal DispersionOmni-directional below 200 HzNet Weight14 lb (6.4 kg)Shipping Weight20 lb (9.1 kg)Black040148Long Term Power Handling70/100 V: 200 W (800 W peak) monoLong Term Power Handling Low Impedance50 W (200 W peak) per channel stereo or 100 W (400 W peak) monoSensitivity SPL Or One W One m Per channel76 dB SPL (Mono: 79 dB SPL)Maximum SPL One m Per channel96 dB SPL (102 dB SPL peak)Maximum SPL One m Mono102 dB SPL (108 dB SPL peak)Nominal Impedance6 Ohm mono direct (transformer bypassed)Recommended High Pass Filter40 Hz high-pass filter Product DescriptionDesigned 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.he BoseFreeSpace 3 Series II Acoustimase bass module is designed to provide flush-mount bass augmentation for new and existingbackground music systems.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 applicationsAcoustimass speaker technology filters out audible distortion to deliver non-localized bassDesigned to work with the FreeSpace 3 flush and surface satellite speakers, or existing systems where additional bass reinforcement is desiredModule design allows parallel connection of multiple bass modules and can accommodate two or four FreeSpace 3 satellites per bass modulePlenum rated for use in air handling spaces (with optional plenum cover)Selectable 70/100V or low impedance with transformer tap adjustment under speaker grilleFrequency response and range measured on-axis with recommended active EQ in an anechoic environment.Power handling tested using pink noise filtered to meet IEC 268-5, 6 dB crest factor, 100 hours, with recommended EQ.Sensitivity measured in free field (no boundary-loading gain) with recommended active EQ, referenced to 1W/1m.Maximum SPL calculated from sensitivity and power handling specifications, exclusive of power compression.Application-Retail stores,Restaurants and bars,Lobbies and conference roomsSuspension / Mounting-Integral quick-install mounting features. Three mounting points at the rear of the housing for pendant mounting