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Sound Rating: 6 / 10 # Owners: 1
Relaibility Rating: 8 / 10 Views: 260

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Technical Details

Brand: Akai


Category:Super High Fidelity (Reserved for top-end recorders)


Electronic:Solid State

Country of Manufacture:Japan

Release dates:1976 - 1980

Original Price: $1095

Tracks:1/4 Rec/PB+1/2PB

Speeds: 3 3/4, 7 1/2

Max Reel Size("): 10.5"

Number of heads: 4

Dimension: 20.9 x 17.3 x 10.4"

Head Composition: Ferrite/Glass

Head Configuration: Quad

# Motors: 3

Auto Reverse?:No

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

Frequency Response:30 - 21000 Hz (+-3dB) 7.5 ips

Wow and Flutter:less than 0.06% at 7½ ips, less than 0.1% at 3¾ ips

Signal-to-Noise Ratio:50 dB

Sound quality rating:6 / 10

Long-term reliability rating: 8 / 10

Weight: 45.5

Additional Details


The GX-630D-SS (along with the GX-270D-SS) were the last of Akai’s Surround Sound series.
Both these models featured the Quadra Sync feature which meant that they could be used as a mini home-studio, much like the Teac A3440S. In ‘Quadra Sync’ mode, the pre-recorded tracks could be monitored via the record head, avoiding the time delay normally associated with the playback head and thus giving ‘Sync’ for the subsequent recorded parts. The recorder could be used in either 4-channel surround sound or stereo
A three motor drive system was employed, with Akai’s new CPG (Centre Pole Frequency Generated) AC servo motor for direct capstan drive and two eddy current outer rotor motors for the reels.
A pitch control function gave a 5% playing speed modulation. Other features included four microphone inputs, two headphone outputs and a 10½ ‘” reel capacity.


Additional Info

Crosstalk: better than 40dB / Distortion: less than 0.5% / Bias frequency: 100kHz / Outputs: Line: 0.775V, two stereo headphones sockets / Dimensions: 20.9 x 17.3 x 10.4″ (530 x 440 x 265mm) / Weight: 45.5 lbs (20.7kg) / quarter-track four-channel Surround sound, quarter-track stereo


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