Category:Super High Fidelity (Reserved for top-end recorders)
Country of Manufacture:Japan
Release dates:1979 - 1984
Speeds: 3 3/4, 7 1/2
Max Reel Size("): 10.5"
Number of heads: 3
Dimension: 440 x 446 x 241mm
Head Composition: Ferrite/Glass
Head Configuration: Stereo
# Motors: 3
Voltage(s): 110-120v, 220-240v
Frequency Response:( 3dB): 7½ ips: 30Hz to 26kHz (WR tape)
Wow and Flutter:less than 0.03% at 7½ ips
Signal-to-Noise Ratio:better than 62 dB at 7½ ips
Sound quality rating:7 / 10
Long-term reliability rating: 8 / 10
Weight: 17.6 kg.
The GX-625 had much the same specifications as the GX-620 but with quite a few new refinements.
The pitch control, only offered on U.S. GX 620 models, was now standard on all GX-625 machines. Also, the GX-625 was the first Akai to feature an electronic digital tape counter, displaying not only reel revolutions
but real time in hours, minutes and seconds. Unfortunately the reel-time display didn’t register during fast forwarding.
The digital tape counter also enabled electronic programming of auto-stop, auto-play and auto-repeat (block repeat).
These programmable functions utilized ‘electronic brake assist’ – during fast wind, tape flow would be gradually slowed to almost a standstill (using the eddy-current reel motors) but, as the desired spot approached, the mechanical brakes were invoked to bring the tape to an exact stop. A very decent mid-end tape recorder.
Inputs: Mic: 0.25 mV. Line: 70 mV impedance 100 Kohm. DIN: 2mV / 10Kohm / Outputs: Line: .775 / 20 Kohm. Headphones: 100 mV at 8 ohms. DIN 0.775V / Rewind speed: 120 seconds for 1,200 ft / Dimensions: 17.5 x 17.3 x 9.5″ (446 x 440 x 241mm) / Weight: 39.2 lbs (17.6kg) / quarter-track stereo