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• Free Air Resonance (Fs):46.0 Hz
• Electrical “Q” (Qes): 0.860
• Mechanical “Q” (Qms): 10.690
• Total Speaker “Q” (Qts): 0.796
• Equivalent Compliance (Vas): 0.91 cu. ft. / 25.75 liters
• One-way, Linear Excursion (Xmax)*: 0.52 in. / 13.2 mm
• Reference Efficiency (no): 0.28%
• Efficiency (1W/1m)**: 86.7 dB SPL

• Effective Piston Area (Sd): 50.11 sq. in. / 0.0323 sq. m.
• DC Resistance (Re)***: 4.17 ohm
• Nominal Impedance (Znom): 4 ohm
• Continuous Power Handling (Pt): 250 Watts
• Displacement: 0.064 cu. ft. / 1.81 litres
• Minimum Sealed Enclosure Volume: None
• Optimum Sealed Enclosure Volume: 0.50 - 1.00 cu. ft. / 14.2 - 28.3 liters
• Infinite Baffle Use: No