8½” High Performance Steel Frame Subwoofer Unit. Suitable for dedicated subwoofer applications and as low frequency transducer in 2½-, 3- and multi-way speaker systems.
Specifications
power handling (continuous/programme) = 125 W
frequency range = 30-500 Hz
resonance frequency fs = 32 Hz
impedance R = 4 Ohm
sound pressure level SPL = 89 dB (2,83V; 1m)
DC resistance Re = 3,2 Ohm
force factor BL = 8,4 N/A
voice coil inductance L = 1,2 mH
effective piston radiating area Sd = 206 cm2
effective mechanical mass incl. air load mms = 53 g
equivalent volume of compliance Vas = 27,7 l
total Q factor Qts = 0,47 (Qms=12, Qes=0,49)
voice coil diameter = 39 mm
maximum peak linear excursion vibration xlin = +/- 10 mm
