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Sound Rating: 6 / 10 # Owners: 1
Relaibility Rating: 8 / 10 Views: 441

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Technical Details

Brand: Akai

Model:GX-4000 DB

Category:Mid High Fidelity


Electronics:Solid State


Country of Manufacture:Japan

Release dates:1979 - 1984

Original Price: $360

Tracks:1/4 Rec/PB

Speeds: 3 3/4, 7 1/2

Max Reel Size("): 7"

Number of heads: 3

Dimension: 12.4 x 17.3 x 9" (315 x 440 x 230mm)

Head Composition: Ferrite/Glass

Head Configuration: Stereo

# Motors: 3

Auto Reverse?:No

Voltage(s): 110-120v, 220-240v

Outputs: RCA

Frequency Response:( 3dB): 7½ ips: 30Hz to 24k Hz

Wow and Flutter:less than 0.08% @ 7½ ips

Signal-to-Noise Ratio:GX-4000D: better than 60 dB at 7½ ips GX-4000DB: better than 70 dB at 7½ ips

Sound quality rating:6 / 10

Long-term reliability rating: 8/ 10

Weight: 29 lbs (13.2 kg)

Additional Details


Selling right up until 1984 and still one of the most popular Akai recorders today on the 2nd hand
market, the GX-4000D was an improved version of the 4000DS MKII, using Akai’s GX heads (with a guaranteed 150,000 hours use and a higher frequency response).
Improvements/modification included: re-location of the track selector switch (now next to the head cover instead of on top of it), an extra output level control on the front panel,  the capstan speed change sleeve was hidden under the head cover when not in use and 50% less wow and flutter than the earlier 4000DS mk II.
The DB version was equipped with Dolby Noise reduction, the Dolby switch replacing the Sound On Sound switch on the GX-4000D. The GX-4000DB, however, still retained the SOS function via a pull-switch on the left line-in knob.
This unit was also available with a matt-black panel.

Additional Info

three: erase, GX record and GX playback head
single 4-pole induction motor; model: IMC-100
Tape speeds
3¾ ips and 7½ ips ( 7½ ips with capstan sleeve)
Frequency response ( 3dB)
7½ ips: 30Hz to 24k Hz
3¾ ips: 30Hz to 16kHz
Wow & flutter
less than 0.08% @ 7½ ips
Signal to noise ratio
GX-4000D: better than 60 dB at 7½ ips
GX-4000DB: better than 70 dB at 7½ ips
less than 1% (1,000 Hz “0” VU)
Rewind speed
200 sec. using a 1,200 ft tape at 50 Hz


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