Power: 0.25W/0.5W/1W/2W/3W. Rated input power: 2W. Maximum input power: 1500mW. Impedance: 80 ± 15% Ω. Impedance: 40 ± 15% Ω. Maximum input power: 1000mW. Resonance frequency: 500Hz ± 20%. Resonance frequency: 320Hz ± 20%.
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