Akai GX-747dbx

October   1 9 8 2 october 1982
1 9 8 4 1984

Later, last, ultimate and very rare version of the GX-635D / GX-646 / GX-747 line.

Identical to the latter in every detail but for the addition of Type I dbx noise reduction for a 10,000¥ supplement.

Expect a 100dB s/n ratio, and up to 128dB at 1Khz !

Available in silver (more) of black (less) but only with VU meters.












A black one here, another one here.

Akai GX-747dbx, image 1 Akai GX-747dbx, image 2 Akai GX-747dbx, image 3 Akai GX-747dbx, image 4
Akai GX-747dbx specifications
Title Value
Track system : 4-track / 2-channel stereo
Reels : 26cm max.
Tape speed : 19cm/s & 9,5cm/s.
Wow & flutter : < 0,03% (WRMS, 19cm/s)
± 0,045% (EIAJ, peak, 19cm/s)
< 0,04% (WRMS, 9,5cm/s)
± 0,065% (EIAJ, peak, 19cm/s)
Frequency response : 25Hz...33Khz (±3dB, 19cm/s, EE tape)
25Hz...25Khz (±3dB, 9,5cm/s, EE tape)
THD : 0,4% (1Khz, 19cm/s)
S/N ratio : > 65dB (19cm/s, JIS, dbx OFF)
> 63dB (19cm/s, EIAJ, dbx OFF)
> 100dB (19cm/s, dbx ON)
> 128dB (19cm/s, 1Khz, dbx ON)
Heads : 2x GX recording head
2x GX playback head
2x GX erase head
Motors : 1x AC servo for capstan / 1x CPG AC servo for capstan
2x DC motors for reel drive
PC : 80W
Dimensions : 44 x 49,3 x 25,6cm
Weight : 23,2kg.
List price : 230,000¥ (1982)
Optional : RC-21 remote control
DC-635 dustcover
RH-12-J NAB adaptors
AH-15-J head demagnetizer
OR-100 dedicated rack
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