The 26W/8867T a new black Aluminum cone woofer. Aluminum is a good material for subwoofer cones, very stiff and light. These cones reduce distortion and also help cool the voice coil, by conducting heat away from the coil. This woofer has a low loss suspension for increased bass response and the SD-1 motor system for less intermodulation distortion. Very rigid cast frame, large windows.
Specifications
power handling (continuous/programme) = 170 W
frequency range = 18-1000 Hz
resonance frequency fs = 19 Hz
impedance R = 8 Ohm
sound pressure level SPL = 87 dB (2,83V; 1m)
DC resistance Re = 5,8 Ohm
force factor BL = 11,2 N/A
voice coil inductance L = 0,4 mH
effective piston radiating area Sd = 320 cm2
effective mechanical mass incl. air load mms = 57 g
equivalent volume of compliance Vas = 176 l
total Q factor Qts = 0,29 (Qms=4,5, Qes=0,31)
voice coil diameter = 50 mm
maximum peak linear excursion vibration xlin = +/- 9 mm
