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Akai GX-255

Akai

Japan

Akai GX-255

Tape Deck Details

Number of Motors

3

Number of Heads

4

Head Configuration

Stereo

Wow & Flutter

0.04% WRMS at 7½ ips

Signal-to-Noise [dB]

61

Dimensions [mm]

440 × 419 × 242

Weight [kg]

16

Year built

1979-1984

Head Composition

Ferrite/Glass

Equalization

NAB

Frequency Response

30 Hz to 24 kHz ±3 dB at 7½ ips

Speed

3¾, 7½

Max Reel [inch]

7

Price

​

Additional Information

The Akai GX-255 is a mid to high-fidelity stereo reel-to-reel tape recorder produced by Akai between 1979 and 1984. It was among the last of the Akai 200 series, featuring advanced recording and playback technology for consumer audio enthusiasts.


Core Technical Specifications


  • Production Years: 1979–1984

  • Track System: 4-track, 2-channel stereo/monaural system with auto-reverse

  • Tape Speeds: 3¾ and 7½ ips (inches per second)

  • Maximum Reel Size: 7 inches

  • Number of Heads: 4 (Erase, GX Record, 2 GX Playback heads)

  • Head Composition: Ferrite/Glass

  • Motor Configuration: 3 motors (AC servo direct-drive capstan motor, two AC eddy current reel motors)

  • Auto Reverse: Yes

  • Frequency Response: 30 Hz to 24 kHz ±3 dB at 7½ ips (using WR tape)

  • Wow and Flutter:
    0.04% WRMS at 7½ ips
    0.10% DIN 45500 at 3¾ ips

  • Signal-to-Noise Ratio: 61 dB DIN 45500 at 7½ ips

  • Crosstalk: Better than 40 dB at 1,000 Hz

  • Channel Separation: Better than 55 dB at 1,000 Hz

  • Distortion: 0.5% at 7½ ips, 1,000 Hz at 0 VU

  • Erase Ratio: Better than 70 dB at 1,000 Hz

  • Inputs: Mic (0.25 mV impedance 600 Ω), Line (70 mV 100 Ω), DIN (2.0 mV / 10 kΩ)

  • Outputs: RCA Line (0.775 V / 20 kΩ), Headphones (100 mV / 8 Ω), DIN (2.0 mV / 10 kΩ)

  • Dimensions: 440 mm × 419 mm × 242 mm (WxDxH)

  • Weight: Approximately 16 kg (35.3 lbs)

  • Voltage Options: 110-120V and 220-240V available


Features and Highlights


  • GX Heads: Incorporates Akai’s patented GX (Glass and Crystal) heads for high durability and superior sound quality.

  • Auto-Reverse: Automatically switches playback and recording direction without manual tape flipping.

  • Three Motor Drive System: Ensures stable tape transport and speed control for consistent performance.

  • Remote Control Jack: Compatible with remote control units RC-70 or RC-18.

  • Feather-Touch IC Controls: Smooth, precise electronic control interface.

  • Track Selector: Easy switching with indicators for record/playback modes.

  • Mic/Line Mixing: Enables blending inputs for live recording or overdubbing.

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