Akai GX-220

Data

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

• Other models in the same series:
• Akai 1710 L
• Akai 1710 W
• Akai 4000
• Akai 4000 D
• Akai 4000 DS
• Akai GX-220
• Akai GX-220 D
• Akai GX-280
• Akai GX-280 D
• Akai GX-365
• Akai GX-365 D
• Akai M-10 L/W
• Akai X-150 D
• Akai X-200 D
• Akai X-300
• Akai X-330
• Akai X-330 D
• Akai X-360
• Akai X-360 D
• Akai X-1800 SD
• Akai X-2000 SD
• Akai X-5000 L/W

Pictures

• Excerpt from brochure: Akai GX-220

• Original 18cm Akai metal coil

• Original 18cm Akai deluxe metal coil front panel.

• Original 18cm Akai deluxe metal coil back side.

Links

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