FIELD: sound reproduction equipment. SUBSTANCE: device is formed by several parallel amplifying channels and microphone unit, which has microphone amplifier and bandpass filters. Any amplifying channel has bandpass filter being identical to corresponding filter of microphone unit, controlled-gain amplifier and control circuit. Standard signal is used for automatic correction. Spectrum of the signal is known and is recorded in pauses between phonograms. As a result of analysis of real spectrum of the signal, linear frequency distortions of phonogram may be eliminated, if they are caused by method of recording, sound channel and subjective error of the user, which may be brought when user regulates timbre manually. So conditions for listening are created, at which sounding of the phonogram approaches to natural sounding of primary sound source, which is recorded to phonogram. EFFECT: improved precision; improved quality of correction. 1 dwg
