| Title | Value |
|---|---|
| Motor : | 4-pole induction |
| Tape speeds : | 19cm /s |
| 9,5cm /s | |
| FF/Rew time : | 200s (370m tape) |
| Wow & flutter : | 0,08% (19cm/s, WRMS) |
| Frequency response : | 30Hz...24Khz (±3dB, 19cm/s) |
| 30Hz...16Khz (±3dB, 9,5cm/s) | |
| THD : | 1,0% (19cm/s) |
| S/N ratio : | 60dB (JIS, GX-4000D) |
| Crosstalk : | 40dB |
| Erasure ratio : | 70dB |
| Bias frequency : | 100Khz |
| PC : | 36W |
| Dimensions : | 44 x 31,5 x 23cm |
| Weight : | 13,2kg. |
| List price : | 69,800¥ (1978) |
| 300$ (1980) | |
| Optional : | DC-4000 dustcover (5,000¥) |
| R-77M-J (metal reel, 1,400¥) | |
| R-77M-J (black metal reel, 1,600¥) |
Akai GX-4000D
Akai GX-4000DB
october 1978
1984
After the 4000DS, 4000DS MKII, 4000D PRO and 4000DB throughout the 1970s, the visually redesigned GX-4000D was the last version, released with added GX heads for ultra-reliablity there too.
Shiny silver originally (very common) but also available in black (very rare).
The GX-4000DB visually substitutes the S.O.S feature for a Dolby circuit. There is a trick around this, though : pull the left line-in knob and the S.O.S. circuit is there !
The DB version was not produced in black.
Not much else to say : it sold like hotcakes despite being launched when open-reel had past its market peak and it lived even beyond the launch of CD !
Nudies aplenty here and versions comparison here.
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