Careful acoustic design and the use of advanced materials contribute to the exceptional music fidelity and speech intelligibility exhibited by the RCF Monitor 55 (black)and Monitor 55W (white)twoway speaker systems. The shielded low-frequency driver's carbon fiber diaphragm produces a linear response and low distortion. The high-frequency section features a 110 ox 110 oconstant directivity horn with a builtin mechanical phase equalizer. The horn is driven by a Ferrofluid ® cooled,0.75" soft dome tweeter.FeaturesIdeal for high quality paging and music reproductionTransducers LF 5" - HF 0.75" constant directivity tweeterBuilt-in low inductance passive crossover with high frequency dynamic protectionbass reflex tuned at 65HzBody in self-extinguishing plasticIncludes hinged support for installationAcoustical Specifications Type of speaker: Compact two-wayFrequency Response: 100 Hz ÷ 19 kHzMax SPL @ 1m: 112 dBHorizontal coverage angle: 110°Vertical coverage angle: 100°Power Handling: 175 W RMSSystem Sensitivity: 87 dBImpedance: 4 Crossover frequencies: 3000 Hz Transducers Speaker: 5"Tweeter: 0.75" Input Section Input connector: Push type terminalCabinetHardware: Body in self-extinguishing composite materialColour: WhiteGrille: Steel Physical Specifications Height: 270 / 10.62 mm/inchWidth: 187 / 7.36 mm/inchDepth: 172 / 6.77 mm/inchNet weight: 3.87 / 8.53 kg/lbs.