Features:

Impedance: 8 Ohms
Power capacity: 2000 W Peak 1000 W Program 500 W Continuous
Sensitivity: 97.5 dB / 1 W 1 m
Usable freq. range: 35 Hz ~ 1 kHz
Cone: Kevlar® impregnated cellulose
Voice coil diameter: 4.0" / 100 mm
Voice coil material: Aluminum ribbon wire Polyimide-impregnated fiberglass former Nomex® stiffener Solderless diffusion welded OFHC copper leads
Net weight lb. / kg: 18 lbs. / 8.2 kg
Znom (ohms) 8
Revc (ohms) 5.10
Sd (Square Meters) 0.124
BL (T/M) 17.77
Fo (Hz) 39.9
Vas (liters) 281.5
Cms (uM/N) 129.6
Mms (gm) 122.60
Qms 9.95
Qes 0.497
Qts 0.473
Xmax (mm) 2.0
Le (mH) 0.32
SPL (1W 1m) 97.5
No (%) 3.50
Vd (cu. in. / ml) 29.5 / 483
Pmax (Watts pgm.) 1000
Disp (cu. in. / ml) 228 / 3737
18"
Weight Unpacked: 21.94 lb(9.95 kg)
Weight Packed: 24.14 lb(10.95 kg)
Width Packed: 20.079"(51.00066 cm)
Height Packed: 20.866"(52.99964 cm)
Depth Packed: 8.268"(21.00072 cm)