Technics RS-646DS

Technics D46

1 9 7 6 1976
1 9 7 8 1978

Rare portable pro-sumer cassette recorder.

Uher ruled on the professional side, Sony elsewhere with Technics, Teac and JVC taking whatever little space was left. And when Sony unveiled the first TC-D5 in '78... there was no one else left.

The RS-646DS is the smaller sibling to the big RS-686DS ; no gadget but not exactly hi-fi with a frequency response stopping at 14Khz...

Mind you, the 686 didn't much better and, as we all know, most of the daily sounds rarely go over 12Khz and radio broadcasts stop at 15Khz !

Technics RS-646DS, image 1 Technics RS-646DS, image 2 Technics RS-646DS, image 3
Technics RS-646DS specifications
Title Value
Motor : 1x DC Servo
Heads : 1x Super-Alloy rec/play
1x double-gap Ferrite erase
Tape speed : 4,8cm/s
Wow & flutter : 0,10% (WRMS)
Frequency response : 50Hz...14Khz (±3dB, Type II)
50Hz...14Khz (±3dB, Type I)
S/N ratio : 65 dB (above 5Khz, with Dolby)
55dB
Rewind time : 130s for a C-60 tape
THD : ?
Inputs : MIC (0,25mV / 400Ohm...10kOhm)
LINE (60mV / 47kOhm)
Outputs : LINE (0,42V / 50kOhm)
headphones (65mV / 8 Ohm)
monitor (0,8W ; monaural L+R)
PC : 9W (AC 120V)
12V (DC)
8x D batteries
Dimensions : 36,3 x 10,6 x 28cm
Weight : 5,7kg.
List price : 65,000¥ (1976)
Optional : RP-957 car adaptor
Features : ° 4tr / 2ch
° DC Servo motor
° Super Alloy combined r/p head
° Double Gap ferrite erase head
° Dolby NR
° Separate bias & eq controls
° MIC inputs with attenuator
° Low-Distortion / High-Linearity MIC amplifier
° Limiter circuit
° Silent-Stop mechanism with End indicator
° Separate L/R level controls with InterLock
° DC / AC / CAR power-supply
° Built-in 4" monitor
° Level / Battery check meter
° Meter light switch
° Lockable pause control
° 8 "D" batteries provide 8 hours of use.
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