Technics RS-640US

Technics RS-640U

1 9 7 6 1976
1 9 7 7 1977

When recording decks were horizontal - like the Lenco, the Sony or the Akai of the times, the horizontal cassette deck was gradually replacing the vertical open-reel as recording device for the home.
Until cassettes got vertical - a natural evolution of the species it seems :)

This one had an eye, too, flashing when the tape is about to end, memory rewind, auto-stop and mic/line mixing functions, 61dB of s/n (with Dolby on :) and versatile meters.

Plus a full 10-year guarantee on its HPF heads - hot-pressed ferrite.

Technics RS-640US, image 1 Technics RS-640US, image 2
Technics RS-640US specifications
Title Value
Motor : 1x DC Servo
Heads : 1x HPF rec/play
1x double-gap Ferrite erase
Tape speed : 4,8cm/s
Wow & flutter : 0,08% (WRMS)
Frequency response : 30Hz...14Khz (±3dB, Type I)
30Hz...16Khz (±3dB, Type II)
S/N ratio : 61dB (above 5Khz, with Dolby)
51dB
Rewind time : 130s for a C-60 tape
THD : ?
Inputs : MIC (0,3mV / 600 Ohm...20kOhm)
LINE (60mV / 47kOhm)
Outputs : LINE (0,42V / 22kOhm)
headphones (65mV / 8 Ohm)
PC : 8W
Dimensions : 43,2 x 13 x 30,1cm
Weight : 5,7kg.
List price : 69,800¥ (1976)
Optional : RP-9640 remote-control (3000¥)
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