ManualFEATURES- 2.5 INCH EDGEWOUND CCA VOICE COIL- 108 dB/SPL SENSITIVITY- 160 W PROGRAM POWER HANDLING- FEM OPTIMIZED MOTOR, PHASEPLUG AND DIAPHRAGM- 1000 - 18000 Hz FREQUENCY RANGE- TITANIUM DIAPHRAGM- PATENTED IIS INTEGRAL INPUT SURFACE PHASEPLUG..