Transducer Size (Millimeters)101.6
DC Resistance7.1
Resonant Frequency204.76
Half Space Sensitivity86.76
Rated Noise Power30
Test Spectrum Bandwidth100Hz-20KHz

Transducer Size (Millimeters)101.6
DC Resistance7.1 Ω±5.0%
Resonant Frequency204.76 Hz15%
Half Space Sensitivity @ 2.83V86.76 dB±1.01
Sensitivity @ 1W/1m87.3 dB±1.01
Rated Noise Power (IEC 268-5 18.1)30 W
Test Spectrum Bandwidth100Hz-20KHz 12 dB/Oc
Effective Piston Area58.1 cm2
Moving Mass4.9 g
Motor Force Factor5.15 T•m
Voice Coil Inner Diameter25.73 mm
Gap Height5 mm
Maximum Linear Excursion0.2 mm
Ferrofluid Type
Minimum Impedance9.11 Ω±7.5%
Voice Coil Inductance0.13 mH
Mechanical Q Factor2.18
Electrical Q Factor1.68
Total Q Factor0.95
Ratio215.99 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance124.1 μm/N
Effective Cone Diameter8.6 cm
Motor Efficiency Factor3.7 (T•m2)/Ω
Voice Coil Former MaterialASV
Transducer Mass1 Kg
Equivalent Volume0.74 L

This Peerless 4 inch 8 ohm midrange driver comes complete with its own sealed rear chamber, intended for infinite baffle installations. The aluminium basket is integrated with the rear chamber for added structural rigidity and heating sinking. The driver features a ferrite motor structure and a paper cone body edged with a damped, inverted rubber surround, and has an operational range from 200 Hz to 5 kHz.