W05/1,2.2.8

20 cm full range driver with high quality cone. A magnet system based on Neodymium magnets is used.
•resonance frequency fs = 88 Hz
•impedance R = 4 Ohm
•sound pressure level SPL = 94 dB (2.83V; 1m)
•DC resistance Re = 4.2 Ohm
•force factor BL = 3.1 N/A
•voice coil inductance L = 3.7 mH
•effective piston radiating area Sd = 220 cm2
•equivalent volume of compliance Vas = 15 l
•total Q factor Qts = 0.88 (Qms=2.94. Qes=1.25)
•maximum peak linear excursion vibration xlin = +/- 3.5 mm
•mounting diameter d = 192.5 mm
•overall diameter d = 211 mm
•mounting depth (not countersunk) t = 22 mm