Akai GX-747-DBX specifications

Category : Tape machines

Brand : Akai

General

Connections

Tech nical data

Special features

• Manufacturer: Akai
• Model: GX-747 DBX
• Type: Tape machine
• Years of manufacture: 1983 - 1984
• Made in: Japan
• Color: Silver, Black
• Remote control: yes, optionally cable remote control RC-21 or infrared RC-90
• Power consumption: 80 W
• Dimensions: 440 x 493 x 256 mm (WxHxD)
• Weight: 23.2 kg
• Factory price approx.: 3'100 DM
• Optional accessories:
  • RC-21 Cable remote control: 6'000 yen (Japan, 1982), corresponds to about 90 DM
  • RC-90 Infrared remote control: 18'000 yen (Japan, 1982), corresponds to about 270 DM
  • DC -635 Hood:
  • RH-12-J NAB Adapter:
  • AH-15-J Head Demagnetizing Device:
  • OR-100 Rack:

• RC-21 Cable remote control: 6'000 yen (Japan, 1982), equivalent to about 90 DM
• RC -90 Infrared Remote control: 18'000 yen (Japan, 1982), equivalent to about 270 DM
• DC-635 Hood:
• RH-12-J NAB Adapter:
• AH-15-J Head demagnetizing device:
• OR-100 Rack:

• Number of outputs:
  < li>Line 0.775V at 0 VU
  • DIN 0.3V
  • Headphones 6.3mm jack
• Number of inputs:
  • Microphone 0.25mV (5.0 kohm) 2x 6.3 jack
  • Line 70 mV
  • DIN 2.0mV

• Line 0.775V at 0 VU
• DIN 0.3V
• Headphones 6.3mm jack

• Microphone 0.25mV (5.0 kohm) 2x 6.3 jack
• Line 70 mV
• DIN 2.0mV

• Max. Coil diameter: 26.8 cm
• drive: 3 engines
  • AC Servo Motor for Capstan drive 1x
  • AC Eddy current Motor for Reel 2x
• heads: 6x
  • 2x GX heads recording
  • 2x GX heads playback
  • 2x the erase heads
• tracks: quarter-track, 2-channel, Stereo
• tape speed:
  • 19.0 cm/ s ± 0,8 %
  • 9.5 cm/ s ± 1,0 %
• flutter:
  • <0,03 % WRMS , 0,07 % DIN 45500 at 19.0 cm/ s
  • <0,04 % WRMS , from 0.09 % DIN 45500 at 9.5 cm/ s
• frequency response:
  • 25 - to 33,000 Hz ± 3 dB at 19.0 cm/ s
  • 25 - 26.000 Hz ± 3 dB (0 VU)
  • 25 - 25,000 Hz ± 3 dB at 9.5 cm/ s
  • 25 - 15,000 Hz ± 3 dB (0 VU)
• signal-to-noise ratio:
  • DBX From: > 63 dB (19cm/s
  • DBX : > 100 dB (19cm/s)
  • DBX : > 128 dB (19cm/s, 1Khz)
• external voltage distance: ~60 dB
• total harmonic distortion: <0,4 % 19.0 cm/ s
• equalization:
• Crosstalk:
• delete attenuation:
• premagnetization and deletion frequency:

• AC Servo Motor for Capstan drive 1x
• AC Eddy current Motor for Reel 2x

• 2x GX heads recording
• 2x GX heads playback
• 2x the erase heads

• 19.0 cm/ s ± 0,8 %
• 9.5 cm/ s ± 1,0 %

• <0,03 % WRMS , 0,07 % DIN 45500 at 19.0 cm/ s
• <0,04 % WRMS , from 0.09 % DIN 45500 at 9.5 cm/ s

• 25 - to 33,000 Hz ± 3 dB at 19.0 cm/ s
• 25 - 26.000 Hz ± 3 dB (0 VU)
• 25 - 25,000 Hz ± 3 dB at 9.5 cm/ s
• 25 - 15,000 Hz ± 3 dB (0 VU)

• DBX From: > 63 dB (19cm/s
• DBX : > 100 dB (19cm/s)
• DBX : > 128 dB (19cm/s, 1Khz)

• Auto-Reverse
• DBX
• Pitch Control
• Timer Start
• Bias Adjust
• Auto Mute

• Other models from the same series:
  • Akai GX-4000-D
  • Akai GX-77
  • Akai GX-625 D
  • Akai GX-636 D
  • Akai GX-636 DB
  • Akai GX-646
  • Akai GX-747
  • Akai GX-747 DBX

• Akai GX-4000-D
• Akai GX-77
• Akai GX-625 D
• Akai GX-636 D
• Akai GX-636 DB
• Akai GX-646
• Akai GX-747
• Akai GX-747-DBX

• image: Akai GX-747 DBX in Black

• image: Akai GX-747 DBX in silver

• External Link to website, "The Vintage Knob": [[1]]

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