Soviet HI-FI and its creators: headphones for one plate or forgotten history Electronics TDK-3 “KVADRA”
Today it is difficult to surprise anyone with multi-channel surround sound. Slightly less people know about the 5.1 and 7.1 headphones that gamers sometimes use. At the same time, the history of the emergence of multi-channel portable sound remains unfairly forgotten.
The fact is that in the 1970s, the first quad recordings appeared, which in turn required the equipment to play them. The logical step was the production of appropriate amplifiers, speakers and, unexpectedly, headphones.
For a period of short interest in the quad in the USSR, its own model of headphones of this type, “Electronics TDK-3" KVADRA ", appeared and reached mass production. Their release quickly stopped. Meanwhile, by the end of the 70s it was this model, along with the “ECHO” series and the isodynamic TDS-? that was one of the first in the USSR that corresponded to the HI-FI standard. Under the cut about the history of quad headsets in the USSR and not only. catalog There is headphones , many, different.
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