Check the listing for details. Bose Professional EdgeMax EM180 In-Ceiling Loudspeaker (White). Color: White, Condition: New. Listed at 617.49 USD. Bose Professional EdgeMax EM180 In-Ceiling Loudspeaker (White) - USA Authorized Dealer!Bose Professional EdgeMax in-ceiling premium loudspeakers feature proprietary Bose PhaseGuide technology with high-frequency compression drivers to create a new category that combines the room-filling coverage patterns typical of larger surface-mount speakers with the architect-preferred aesthetics of in-ceiling models. Designed to mount near wall-ceiling boundaries, EdgeMax loudspeakers provide improved audio quality and coverage, while reducing the number of required units, compared to conventional dome-tweeter ceiling speakers. Key FeaturesPhaseGuide technology – provides unique asymmetrical vertical pattern for room-filling coverage when mounting near wall-ceiling boundaryProvides improved room visual appearance – for demanding interior designs by eliminating center-of-ceiling or wall-mounted loudspeakersNominal 180° horizontal coverage – designed for in-ceiling mounting along wall coverage zonesHigh-frequency compression driver – for best-in-class audio quality with superior frequency response and coverage consistency versus typical dome tweeters8-inch woofer – with wall-boundary loading provides extended bass impact2-way passive crossover with 70/100V transformerNew auto-hold, spring-loaded mounting arms – for fast, easy installsMagnetically attached grill – for quick access to wiring and tap settingsUL1480A listing – for air-handling (plenum) space installationKey SpecsActive/PassivePassiveNumber of Included Speakers1Speaker Configuration2-WayPower Handling125 W RMS250 W Program500 W PeakConstant Voltage / Transformer Taps70 V / 100 VImpedance8 OhmsHF Driver1x Asymmetrical Horn Compression DriverLF Driver1x 8" / 203.2 mmFrequency Range45 Hz to 20 kHz -10 dBColorWhiteSpeakerActive/PassivePassiveNumber of Included Speakers1Speaker Configuration2-WayPower Handling125 W RMS250 W Program500 W PeakRecommended Amplifier Power250 W RMSConstant Voltage / Transformer Taps70 V / 100 VImpedance8 OhmsDriversHF Driver1x Asymmetrical Horn Compression DriverHF Voice Coil1.3" / 33.02 mmLF Driver1x 8" / 203.2 mmLF Voice Coil1.5" / 38.1 mmPerformanceFrequency Range45 Hz to 20 kHz -10 dBFrequency Response50 Hz to 18 kHz ±3 dBMaximum SPL114 dB SPL (Continuous)120 dB SPL (Peak)Sensitivity93 dB SPLCoverage Angle180° H x 75° VCrossover1 kHzConnectivityInputs/Outputs1x Block Speaker Input (Locking)EnvironmentalCertificationsULPhysicalColorWhiteMounting1x Ceiling TileCutout Depth9.3" / 236.2 mmCutout Size13.6 x 13.6" / 345.4 x 345.4 mmDimensions15.4 x 15.4 x 9.8" / 391.16 x 391.16 x 248.92 mmWeight22.2 lb / 10.1 kg (with Grille)Packaging InfoPackage Weight30.65 lbBox Dimensions (LxWxH)17.3 x 17.2 x 13.01"