JL Audio 12W3v3-4 12inch Subwoofer Driver (4ohm)

Product features

• Free Air Resonance (Fs): 26.72 Hz
• Electrical “Q” (Qes): 0.472
• Mechanical “Q” (Qms): 7.572
• Total Speaker “Q” (Qts): 0.444
• Equivalent Compliance (Vas): 2.844 cu. ft./80.54 liters
• One-Way, Linear Excursion (Xmax): 0.510 in./13.0 mm
• Reference Efficiency (no): 0.313%
• Efficiency (1W/1m): 87.15 dB SPL
• Effective Piston Area (Sd): 80.600 sq. in./0.0520 sq. m.
• DC Resistance (Re): 3.563 ohm
• Nominal Impedance (Znom): 4 ohm
• Thermal Power Handling (Pt): 300W
• Driver Displacement: 0.071 cu. ft./2.01 liters
• Net Weight: 14.50 lbs./6.58 kg