- High quality 2-Way coaxial speaker - Resonance free steel basket - High efficient 3 Ohm voice coil - Aluminum cone / Rubber surround - Nomex spider - 0.51? PEI tweeter with 6 dB crossover - MKT capacitor and overload-protection Type: 2-Way coaxial Diameter of midwoofer or midrange: 165 mm / 6.5? Mounting diameter of midwoofer or midrange: 142,5 mm / 5.61? Mounting depth of midwoofer or midrange: 68 mm / 2.68? Voice coil of midwoofer or midrange: 25 mm / 1? Cone of midwoofer or midrangeAluminum Basket of midwoofer or midrange: Steel Magnet of midwoofer or midrange: Ferrit Voice coil of tweeter: 13 mm / 0.51? Cone of tweeter: PEI Housing of tweeter: ABS Magnet of tweeter: Neodym Power handling : WRMS100 W Power handling: W peak140 W Impedance: 3 Ohm SPL: 91 dB Frequency response: 50 Hz - 25 kHz.