* 800 W continuous program power capacity * 97dB Sensitivity 1w/1m * Smooth requency response up to 4.0kHz * 3" high temperature voice coil with fiberglass former * Triple roll surround and exponential cone geometry * Ideal for high quality compact 2 or 3-way systems: 1. Nominal Diameter : 15 inch 2.Rated Impedance : 8 ohm 3.Nominal Power handling: 400 Watts 4.Program Power: 800 Watts 5.Sensitivity(lw/lm): 97 dB 6.Frequency Range: 33~4.0k Hz 7.Minimum Impedance(Zmin): 6.8 ohm 8.Voice Coil Diameter: 3 inch.