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JL Audio 12W7
12-inch Subwoofer Driver

Features include:

• Free Air Resonance (Fs): 27.2 Hz
• Electrical "Q"(Qes): 0.514
• Mechanical "Q"(Qms): 7.807
• Total Speaker "Q"(Qts): 0.482
• Equivalent Compliance (Vas): 2.33 cu. ft. / 66.0 liters
• One-Way, Linear Excursion (Xmax)*: 1.15 in. / 29 mm
• Reference Efficiency (no): 0.249%
• Efficiency (1W/1m)**: 86.2 dB SPL
• Effective Piston Area (Sd): 84 sq. in. / 0.0542 sq. m.
• DC Resistance (Re): 2.47 ohm
• Nominal Impedance (Znom): 3 ohm
• Thermal Power Handling (Pt): 750W
• Driver Displacement: 0.14 cu. ft. / 4.0 liters
• Net Weight: 45 lbs. / 20.4 kg

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JL Audio 12W3v3
12-inch Subwoofer Driver (2-Ohm, 4-Ohm, or 8-Ohm)

Specifications for 2-Ohm, 4-Ohm, or 8-Ohm:

• Free Air Resonance (Fs): 27.97 Hz 26.72 Hz 28.28 Hz
• Electrical "Q" (Qes): 0.534 0.472 0.553
• Mechanical "Q" (Qms): 7.678 7.572 6.936
• Total Speaker "Q" (Qts): 0.500 0.444 0.512
• Equivalent Compliance (Vas): 2.806 cu. ft. / 79.47 liters 2.844 cu. ft. / 80.54 liters 2.729 cu. ft. / 77.29 liters
• One-Way, Linear Excursion (Xmax)*: 0.510 in. / 13.0 mm 0.510 in. / 13.0 mm 0.510 in. / 13.0 mm
• Reference Efficiency (no): 0.313% 0.313% 0.303%
• Efficiency (1W/1m)**: 87.15 dB SPL 87.15 dB SPL 87.02 dB SPL
• Effective Piston Area (Sd): 80.600 sq. in. / 0.0520 sq. m. 80.600 sq. in. / 0.0520 sq. m. 80.600 sq. in. / 0.0520 sq. m.
• DC Resistance (Re): 1.658 ohm 3.563 ohm 7.310 ohm
• Nominal Impedance (Znom): 2 ohm 4 ohm 8 ohm
• Thermal Power Handling (Pt): 500W 500W 500W
• Driver Displacement: 0.071 cu. ft. / 2.01 liters 0.071 cu. ft. / 2.01 liters 0.071 cu. ft. / 2.01 liters
• Net Weight: 14.50 lbs. / 6.58 kg 14.50 lbs. / 6.58 kg 14.50 lbs. / 6.58 kg

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