Power handling RMS / Max. P 40 / 60 Watts Frequency response 110 Hz – 22,000 Hz Impedance Z 3 Ω Sensitivity SPL 88 dB @ 2.83V / 1m 84 dB @ 1W / 1m Outer diameter ø 86.9 mm / 3.43” Installation diameter ø 79.0 mm / 3.11” Installation depth 42.0 mm / 1.65” Midrange Impedance Z 3 Ω DC resistance Re 3.0 Ω Resonance frequency Fs 92 Hz Mechanical Q factor Qms 3.80 Electrical Q factor Qes 0.74 Total Q factor Qts 0.62 Compliance Cms 820 μm/N Equivalent air volume Vas 1.5 L Force factor B*l 2.9 Tm Cone area Sd 36 cm2 Moving mass Mms 3.6 g Mechanical resistance Rms 0.52 kg/s Voice coil diameter ø 25 mm Voice coil winding height 8.3 mm Max. linear excursion Xmax +/- 2.2 mm Tweeter Voice coil diameter ø 13 mm Features Tweeter PEI dome and neodymium magnet Midbass Injected polypropylene cone Crossover Integrated, 6 dB highpass Scope of delivery 2 x CB C87.2-S3 1 x Mounting material