21 cm bass driver with high quality cone.
power handling (continuous/programme) = 150 W
frequency range = 20-3000 Hz
resonance frequency fs = 31 Hz
impedance R = 8 Ohm
sound pressure level SPL = 87 dB (2,83V; 1m)
DC resistance Re = 6,4 Ohm
force factor BL = 7,05 N/A
voice coil in..