High efficiency 18" woofer that excels in both vented and horn-loaded bass enclosures. Designed to work in small vented enclosures (3.5 to 6.5 cu. ft.) with surprising bass extension and very high output.
Features
- Field-replaceable basket
 - Kevlar® reinforced cones for increased strength
 - Polyimide-impregnated fiberglass former for higher sensitivity and frequency response
 - Die-cast aluminum frame
 - High power handling
 - 4" diameter edge-wound copper ribbon wire voice coil
 - Solderless diffusion welded OFHC copper leads
 
Specifications
- 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) 6.71
 - Sd (Square Meters) 0.1237
 - BL (T/M) 16.26
 - Fo (Hz) 37.4
 - Vas (liters) 368.0
 - Cms (uM/N) 169.4
 - Mms (gm) 106.7
 - Qms 7.545
 - Qes 0.637
 - Qts 0.587
 - Xmax (mm) 4.60
 - Le (mH) 0.38
 - SPL (1W 1m) 96.7
 - No (%) 2.94%
 - Vd (cu. in. / ml) 69.4 / 1138
 - Pmax (Watts pgm.) 1000
 - Disp (cu. in. / ml) 228 / 3737
 - Weight Unpacked: 17.50 lbs (7.938 kg)
 - Weight Packed: 21.00 lbs (9.525 kg)
 - Width Packed: 20.25" (51.435 cm)
 - Depth Packed: 20.5" (52.07 cm)
 - Height Packed: 7.25" (18.415 cm)