mpedance: 8 OhmsPower capacity: 800 W Peak 400 W Program 200 W ContinuousSensitivity: 96.4 dB / 1 W 1 mUsable freq. range: 40 Hz ~ 3 kHzCone: Kevlar® impregnated celluloseVoice coil diameter: 2.5" / 63 mmVoice coil material: 2 layers, thermally bonded copper wire Kapton former Nomex® stiffenerNet weight lb. / kg: 10.4 lbs. / 4.7 kgZnom (ohms) 8Revc (ohms) 6.00Sd (Square Meters) 0.086BL (T/M) 13.35Fo (Hz) 34.4Vas (liters) 331.6Cms (uM/N) 324.6Mms (gm) 66.50Qms 3.58Qes 0.482Qts 0.425Xmax (mm) 2.5Le (mH) 0.74SPL (1W 1m) 96.4No (%) 2.40%Vd (cu. in. / ml) 26.1 / 428Pmax (Watts pgm.) 400Disp (cu. in. / ml) 131 / 215415"Weight Unpacked: 13.78 lb(6.25 kg)Weight Packed: 15.98 lb(7.25 kg)Width Packed: 16.25"(41.275 cm)Height Packed: 17.25"(43.815 cm)Depth Packed: 7.5"(19.05 cm)