Power RMS / Max: 150 / 225 Watts Impedance : 3 Ohm DC resistance: 2.9 Ohm Frequency response: 50 – 3500 Hz Resonance Frequency ( Fs ): 60 Hz Mechanical Q factor: ( Qms ): 3.00 Electrical Q factor ( Qes ): 0.68 Total Q factor ( Qts ): 0.55 Compliance ( Cms ): 480 ɥm/N Equivalent air volume ( Vas ): 11.6 L Force factor ( B * I ): 4.8 Tm Sensitivity ( SPL ): 92.0 db @ 2.83V/1m┃88.0 db @ 1W/1m Cone area ( Sd ): 131 cm2 Moving mass ( Mms ): 14.8 g Cone material: Ultra high damping crafted paper cone Mechanical resistance ( Rms ): 1.83 kg/s Voice coil diameter: 37 mm Voice coil winding height: 13.4 mm Max. linear excursion ( Xmax ): +/- 3.7 mm Mounting Ø 142.0 mm Mounting depth: 65.8 mm Features: FlexConnect terminal, powerful push-pull neodymium magnet system and FlexMound 100 Compatibility FlexMount165 WireKits Scope of delivery 2 x Ci7 W165FM-S3 2 x Connection cable 2 x Mounting material