18W/8531G00

Characteristic sensitivity (2.83V / 1m) : 87 dB
Recommended frequency range : 28 - 5000 Hz
Free air resonance frequency, fs : 28 Hz
DC resistance, Re : 5.8 ohm
Voice coil inductance, Le : 0.35 mH
Effective piston area, Sd : 150 cm²
Moving mass incl. air, md : 17.5 g
Mechanical loss, Rm : 0.6 Ns/m
Force factor, BL : 6.8 Tm
Equivalent volume, Vas : 59 ltr.
Mechanical Q-factor, Qms : 5.1
Electrical Q-factor, Qes : 0.39
Total Q-factor, Qts : 0.36
Excursion, lin./max. : ±6.5 / ±11 mm
Voice coil diameter : 38 mm
Rated power handling : 60 W
Net weight : 1.75 kg