HI-END QUALITY TWEETER CODE: TRF HE T28ND SERIOUS: HE FREQUENCY: 1.2HZ-27KHZ SENSITIVITY SPL:92.5dB M/W PEAK POWER: 150W RMS POWER: 75W IMPEDANCE: 4ohm VOICE COIL D: 28mm MAGNET TWEETER:NEODYMIUM SIZE TWEETER:(57,5mm) MATERIAL CONE: silk Soft Dome tweeter CROSSOVER : ΠΥΚΝΟΤΕΣ 3.3mF -100V