Version 4 Ohm / 8 Ohm
Free Air Resonance (Fs): 23.68 Hz 24.98 Hz
Electrical Q (Qes): 0.443 0.493
Mechanical Q (Qms): 6.465 6.451
Total Speaker Q (Qts): 0.414 0.458
Equivalent Compliance (Vas): 3.739 cu. ft. / 105.81 liters 3.539 cu. ft. / 100.15 liters
One-Way, Linear Excursion (Xmax)*: 0.375 in. / 9.5 mm 0.375 in. / 9.5 mm
Reference Efficiency (no): 0.304% 0.304%
Efficiency (1W/1m)**: 86.81 dB SPL 86.80 dB SPL
Effective Piston Area (Sd): 81.392 sq. in. / 0.0525 sq. m. 81.392 sq. in. / 0.0525 sq. m.
DC Resistance (Re): 4.101 ohm 6.747 ohm
Nominal Impedance (Znom): 4 ohm 8 ohm
Thermal Power Handling (Pt): 300W 300W
Driver Displacement: 0.035 cu. ft. / 0.99 liters 0.035 cu. ft. / 0.99 liters
Net Weight: 8.61 lbs. / 3.90 kg

Single 4 or 8 Ohm
Power Handling: 150W RMS
Xmax 0.375"
Sealed: 1.25 cubic feet
Ported: 1.75 cubic feet
Mounting Depth 5.1"
Weight 8.7 Lbs