Impedance: 4 Ohms
Power capacity: 2000 W Peak 1000 W Program 500 W Continuous
Sensitivity: 96.6 dB / 1 W 1 m
Usable freq. range: 50 Hz ~ 3.5 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: 16 lbs. / 7.3 kg
Znom (ohms) 4 : Revc (ohms) 3.47
Sd (Square Meters) 0.052
BL (T/M) 14.09
Fo (Hz) 55.4
Vas (liters) 66.2
Cms (uM/N) 172.5
Mms (gm) 47.90
Qms 7.09 : Qes 0.311 : Qts 0.298
Xmax (mm) 2.3
Le (mH) 0.19
SPL (1W 1m) 96.6
No (%) 2.90%
Vd (cu. in. / ml) 18.4 / 302
Pmax (Watts pgm.) 1000
Disp (cu. in. / ml) 109 / 1797
Weight Unpacked: 16.00 lb(7.257 kg)
Weight Packed: 18.50 lb(8.391 kg)
Width Packed: 15.25″(38.735 cm)
Height Packed: 16″(40.64 cm)
Depth Packed: 6.5″(16.51 cm)
Znom: The nominal impedance of the driver in Ohms.
Revc: DC resistance of the driver in ohms, also known as Re.
Sd: The functional radiating surface area of the cone assembly in meters 2.
BL: Efficiency of the voice coil and magnet system in Tesla meters.
Fo: Free air resonance. Also known as Fs.
Vas: Volume of air having the same compliance (springiness) as the driver’s suspension.
Cms: Restorative force of the driver’s suspension in micrometers / Newton.
Mms: The total mass of the moving parts of the loudspeaker, including the air load, in grams.
Qms: Resonance characteristics of the mechanical factors of the loudspeaker.
Qes: Resonance characteristics of electrical factors of the loudspeaker.
Qts: Resonance characteristics of the electrical and mechanical factors combined together.
Xmax: Distance the cone can move in one direction before the coil begins to leave the magnetic gap.
Le: Inductance of the voice coil in millihenries.
SPL: Typical sound pressure level at 1 watt, 1 meter.
No: Electrical to acoustical conversion efficiency in percent.
Vd: Air displacement of the driver from negative Xmax to positive Xmax.
Pmax: Maximum continuous program power in watts.
Disp: Volume displaced by the driver inside the cabinet when mounted on its rear flange.