The quadraphonic amplifier "Elektronika D1-014-quadro" in 1978 was experimentally produced by the Kazan plant of radio components.
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The amplifier was developed in 1977 and was originally called `` Electronics D1-011-Quadra ''.
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There were several design options (2nd and further photos).
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The amplifier went into pilot production (about 10 devices) in 1978 under the name "Electronics D1-014-Quad".
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The amplifier is intended for completing household radio complexes and is designed for high-quality amplification of mono, stereo and discrete quadraphonic signals and for decoding such signals using the QS and SQ matrix system, as well as converting stereo signals into pseudo-quadraphonic ones.
,86e6f450b8cc469628ba70bf2947b049
The amplifier has a number of advantages over the Jupiter-Quadro amplifier; it uses a built-in stereo decoder, a three-band tone control, and protects the loudspeakers from overloads.
,86e6f450b8cc469628ba70bf2947b049
Main characteristics: Rated output power 4x25 W.
,86e6f450b8cc469628ba70bf2947b049
The nominal range of reproducible sound frequencies is 20 ... 31500 Hz.
,86e6f450b8cc469628ba70bf2947b049
Power consumption 260 watts.
,86e6f450b8cc469628ba70bf2947b049
Model dimensions - 505x420x151 mm.
,86e6f450b8cc469628ba70bf2947b049
Its weight is 20 kg.
,86e6f450b8cc469628ba70bf2947b049
Retail price 614 rubles.
,86e6f450b8cc469628ba70bf2947b049
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