FIELD: radio engineering, design of monophonic or stereophonic sound recording and playing back equipment used by individual User under conditions of specially unadopted room. SUBSTANCE: system includes signal source, volume regulator, device regulating amplitude-frequency characteristic, low-frequency amplifier, loudspeaker connected in series. Device automatically controlling amplitude-frequency characteristic that is connected with second input to output of device regulating amplitude-frequency characteristic and with output to input of low-frequency amplifier is placed between device regulating amplitude-frequency characteristic and low-frequency amplifier. Probing device installed in listening point is connected to first input of device automatically controlling amplitude frequency characteristic by means of communication line. EFFECT: enhanced functional reliability. 6 cl, 2 dwg
