FIELD: electroacoustics. SUBSTANCE: device has electrodynamic head with sound coil and diaphragm, negative feedback coil, input adder, and low-frequency amplifier. In addition, device is provided with two resistors and two magnetically coupled coils first of which is connected in parallel with first resistor and in series with second resistor. Starting lead of first coil is connected to low-frequency amplifier output. Starting lead of second coil is connected to input adder input. Negative feedback coil is fixed in position on sound coil of electrodynamic head. EFFECT: improved design. 1 dwg
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