Quadraphonic head phones '' Electronics TDK-3 ''.
Headphones, headphones, headsets ...Quadraphonic headphones "Electronics TDK-3" have been produced since 1979. The phones are designed for individual listening to quadra, stereo and monophonic programs from household equipment. The four-channel system allows you to reproduce music programs most fully and vividly, creating a sense of presence in a concert hall for the listener. The telephones use four-dynamic sound emitters and have the ability to switch operating modes, low power consumption and standard impedance make it possible to use telephones with any sound-reproducing radio equipment. Main characteristics: Passport power 100 mW. Input impedance 8 Ohm. The operating frequency range is 20 ... 20,000 Hz. Nonlinear distortion coefficient at a frequency of 1000 Hz and a sound pressure level of 94 dB is about 1%. Weight 0.8 kg. Phones are connected to the SG-5 socket located in household radio equipment for connecting headphones. When using telephones in "stereo" or "mono" modes, the corresponding switch connector supplied with the telephones is attached to the plug. The price of telephones "Electronics TDK-3" with Olympic symbols is 50 rubles.