Impedance: 8 Ohm. Minimum Impedance: 6.8 Ohm. DC Resistance (Re) - 5.7 Ohm. Magnet Dims: 240 x 120 x 30 mm. Frequency Range: 30 - 1000 Hz. Reference Efficiency (Eta Zero) - 1.59% %. Magnetic Gap Depth: 15 mm (0.59in).
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