Surround sound system `` Dipton ''.

Service devices.The surround sound device "Dipton" has been produced since 1979 by the Lviv PO im. Lenin. "Dipton" can be used as a prefix for a tape recorder, an electrophone, a radio receiver, a radio, a subscriber loudspeaker and other signal sources. With this device, monophonic programs will take on a new color, their sound closer to stereo. Programs converted by Dipton can be listened to through stereo telephones or speakers of a stereo amplifier. "Dipton" is reliable, compact, easy to use. The price of the prefix is ​​50 rubles (initial 45 rubles). Sensitivity from universal input 250 mV, radio broadcasting 30 V. Harmonic coefficient 0.5%. Signal-to-noise ratio 60 dB. The phase shift between the signals at the output in the frequency band 20 ... 20000 Hz is 90 degrees. Since the beginning of 1980, the Ryazan Instrument Plant also produced a similar surround sound device named "Dipton-R" (Ryazan).