Features: Specifically designed for high SPL peformance. DVVC Direct Vent Voice Coil Cooling. Cross drilled front plate venting. Aluminum shorting ring for reduced inductance. Foam surround. Rigid paper cone. Progressive spider. Diecast basket. Single Sided compression terminals. Size: 12 Inch. Voice coil: DUAL 4Ω. RMS/PEAK: 750/1500 Watts. SENS: 85.68 dB. DEPTH: 6.23 Inch. CUT OUT: 11.34 Inch. Thiele Small Parameters:. . Resonant Frequency (fs): 36.7 Hz. Mechanical Q (Qms): 7.217. Electrical Q (Qes): 0.764. Total Q (Qts): 0.69. Sensitivity: 85.68 dB. Xmax Linear: 0.51 in. Displacement: 0.16 cf. Air Volume of Suspension (Vas): 1.09 cf. Moving Mass (Mms): 241.3 g. Suspension Compliance (Cms): 0.078 mmN. Effective Piston area (Sd): 530.93 SqCm. Motor Strength (Bl): 11.23 TM. DC Resistance: 1.73 Ohms. Voice Coil & Magnet:. . Impedance Series: 8 ohms. Impedance Parallel: 2 ohms. Voice Coil Diameter: 2.5 in. RMS Power: 750 watts. Peak Power: 1500 watts. Magnet Weight: 120 oz. Magnet Diameter: 6.69 in. Physical Dimensions:. . Mounting Depth: 6.23 in. Cutout Diameter: 11.34 in. Frame Outside Diameter: 12.94 in. Enclosure Recommendations:. . Single Sub Sealed: 1.5 cf. Dual Subs Sealed: 2.7 cf. Single Sub Vented: 2.5 cf. Port Dimensions: 5" x 5" x 27"L in. Tuning Frequency: 36 Hz. Dual Sub Vented: 4.6 cf. Port Dimensions: 7" x 6" x 23"L in. Tuning Frequency: 36