Celestion NTR12-3018D 12" Neodymium Woofer Speaker Driver 350 Watt-RMS 8 ohm

The neodymium NTR12-3018D 12", from Celestion, incorporates a 3" high-temperature, inside/outside, copper-voice coil to effectively dissipates heat, and prohibit sensitivity loss through thermal compression. Intelligent heat management built into the motor and chassis assembly for reduced thermal compression. An M-rolled cloth surround for progressive excursion control, generating a smooth frequency response. Perfect for line-array or any weight-restricted application. Super lightweight approximately 6 lbs. Product Specifications Nominal Diameter: 12" Power Handling (RMS): 350 Watts Power Handling (max): 700 Watts Impedance: 8 ohms Frequency Response: 50 to 4000 Hz Sensitivity: 98 dB 1W/1m Voice Coil Diameter: 3" Thiele-Small Parameters Resonant Frequency (Fs): 58.70 Hz DC Resistance (Re): 5.69 ohms Voice Coil Inductance (Le): 0.78 mH Mechanical Q (Qms): 2.51 Electromagnetic Q (Qes): 0.33 Total Q (Qts): 0.29 Compliance Equivalent Volume (Vas): 1.81 ft.³ Mechanical Compliance of S