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 Resistance 7.1 Ω±5.0%
Resonant Frequency 204.76 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 Bandwidth 100Hz-20KHz 12 dB/Oc
Effective Piston Area 58.1 cm2
Moving Mass 4.9 g
Motor Force Factor 5.15 T•m
Voice Coil Inner Diameter 25.73 mm
Gap Height 5 mm
Maximum Linear Excursion 0.2 mm
Ferrofluid Type
Minimum Impedance 9.11 Ω±7.5%
Voice Coil Inductance 0.13 mH
Mechanical Q Factor 2.18
Electrical Q Factor 1.68
Total Q Factor 0.95
Ratio 215.99 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 124.1 μm/N
Effective Cone Diameter 8.6 cm
Motor Efficiency Factor 3.7 (T•m2)/Ω
Voice Coil Former Material ASV
Transducer Mass 1 Kg
Equivalent Volume 0.74 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.