Akai GX-4000 D specifications

Brand : Akai

General

Connections

Tech nical data

Special equipment

Manufacturer: Akai
Model: GX-4000 D
Type: Coil Tape
Years of construction: 1981 - 1984
Made in: Japan
Color: Silver (brushed front, silver buttons), Black (black front, black buttons)
Remote Control: No
Power Consumption:
Dimensions: 440 x 315 x 230 mm (WxHxD)
Weight: approx. 13.2 Kg
Factory price approx.: 400 US$, 998 DM

Number of inputs:
- Microphone: 0.25mV, 30 kOhm
- Line In: 70 mV, 200 kOhm
- Line In DIN: 2 mV, 10 kOhm
Number of Outputs:
- Line Out: 0.775V
- Line Out DIN: 300 mV
- Headphones: 100 mV at 8 ohms (large jack)

Max. Coil diameter: 18 cm
Drive: 1 Synchronous motor
Heads: 3
Tracks: Quarter track
Belt speeds (cm/s): 9.5 and 19
- 9.5 cm/s:
- 19 cm/s: ± 2 %
Synchronism fluctuations:
- 9.5 cm/s: 0.12 %
- 19 cm/s: 0.08 %
Pitch fluctuations:
- 9.5 cm/s:
- 19 cm/s: ± 0,7 %
Total frequency response:
- 9.5cm/s: 30 - 16'000 Hz
- 19 cm/s: 30 - 24'000 Hz
Signal-to-noise ratio: > 57 dB
External voltage ratio:
Total harmonic distortion: at 19cm/ sec: < 1 %
Equalization: Yes
Crosstalk attenuation at 1 kHz in mono mode and opposite double track recording: > 67 dB
Crosstalk attenuation at 1 kHz in opposite stereo mode : > 45 dB
Cancellation attenuation: > 72dB
Pre-magnetization and quenching frequency: 102 kHz +/- 5 kHz

Changing the tape speeds by removing or plugging in a Capstan adapter. It is important to make sure that these parts are not lost, otherwise the device can no longer be operated at 19 cm / sec (7 1/2 inch / sec).
Tape counter: 4 digits
Level indicator: 2 illuminated VU meters + Rec indicator LED
Sound On Sound Recording possibilities
Tape types selector (Low Noise or Wide Range)
Backband control
Multiplayback
Echo