Akai GX-220

Data[edit]

General

  • Manufacturer: Akai
  • Model: GX-220
  • Years of manufacture: 1970 - 1973
  • Made in: Japan
  • Color: silver / black, case wood walnut
  • Type: 3-head coil tape with built-in amplifier and speakers
  • Remote control:
  • Power Consumption: 135 W
  • Dimensions: 430 x 425 x 230 mm (WxHxD)
  • Weight: 22.2 kg
  • Original price approx.: 1'704 DM (1972)


Connections

  • Number of inputs:
    • Microphone: 0.2 mV, 10 kOhm

Line: 150 mV, 150 kOhm

    • DIN: switchable
    • Low: 7 mV
    • High: 50 mV
  • Number of outputs:
    • Line: 1.23 V
    • DIN: 10 mV
    • Headphones: 30 - 40 mV at 8 Ohm
    • Loudspeaker: see amplifier section


Technical data

  • Max. coil diameter: 18 cm
  • Drive: 3 motors

1x hysteresis synchronous capstan motor

    • 2x 6-pole external rotor winding motors
  • Heads: 3 (glass heads for recording and playback, 1 ferrite erase head)
  • Tracks: 4
  • Tape speed: 4.75 / 9.5 / 19 cm/sec
  • Overall frequency response:
    • 30Hz - 9kHz ±3dB(4.75cm/sec).
    • 30Hz - 19kHz ±3dB(9.5cm/s)
    • 30Hz - 24kHz ±3dB(19cm/s)
  • Synchronous fluctuations:
    • 4.75 cm/sec: 0.2 %
    • 9.5 cm/sec: 0.12 %

19 cm/sec: 0.08 % * Signal-to-noise ratio: > 50

  • Signal-to-noise ratio: > 50dB
  • External signal-to-noise ratio:
  • Distortion factor (1000Hz, "0" VU recording): < 1.5%.
  • Cancellation attenuation: <70dB
  • Vormagnetisierungs- und Löschfrequenz: 100kHz
  • Entzerrung: nach NAB
  • Übersprechdämpfung:
    • Mono: >70 dB

Stereo: > 50 dB

  • Rewind time: 75 seconds for 370m band


Technical Specifications Amplifier Section

  • Continuous power:
    • 8 Ohm: 20 Watt (10+10W)
    • 4 Ohm:
  • Dynamic power:
    • 8 Ohm: 30 Watt (15+15W)
    • 4 Ohm:
  • Tone control: Yes
    • Bass:
    • Treble:
  • Speaker: L/R, each 10cm round


Special Features

  • Glass heads
  • Model with built-in amplifier and speakers
  • Magnetic brakes
  • Automatic limit stop


Remarks[edit]


Pictures[edit]

  • Excerpt from brochure: Akai GX-220

Akai GX-365-18er Spule-4.jpg


  • Original 18cm Akai metal coil

Akai GX-365-18er Spule-4.jpg


  • Original 18cm Akai deluxe metal coil front panel.

Akai GX-365-18er Spule-4.jpg


  • Original 18cm Akai deluxe metal coil back side.

Akai GX-365-18er Spule-4.jpg


Reports[edit]

Links[edit]

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