ManualFEATURES- 3 INCH EDGEWOUND CCA VOICE COIL- 109 dB/SPL SENSITIVITY- 220 W PROGRAM POWER HANDLING- FEM OPTIMIZED MOTOR, PHASEPLUG AND DIAPHRAGM- 500 ÷ 20000 Hz FREQUENCY RANGE- TITANIUM DIAPHRAG- NEXT GERATION HF DESING- PATENTED IIS INTEGRAL INPUT SURFACE PHASEPLUG..