20 cm (8") HiFi woofer with polypropylene cone. Due to balanced frequency response curve suitable as low-midrange driver for large 4-way speaker systems. Due to the special basket design suitable as replacement driver for many HiFi speakers.
Specifications
power handling (continuous/programme) = 80/120 W
frequency range = -7000 Hz
resonance frequency fs = 47 Hz
impedance R = 4 Ohm
sound pressure level SPL = 91 dB (2,83V; 1m)
DC resistance Re = 3,3 Ohm
force factor BL = 4,5 N/A
voice coil inductance L = 0,7 mH
effective piston radiating area Sd = 240 cm2
effective mechanical mass incl. air load mms = 23 g
equivalent volume of compliance Vas = 39 l
total Q factor Qts = 1,14 (Qms=5,56, Qes=1,44)
voice coil diameter = 30 mm
maximum peak linear excursion vibration xlin = +/- 6 mm
