Akai GX-620 reel-to-reel

Stereo Tape Deck. Extended Recording/Playback Capability.

Have it either way, in mono for voices, or stereo for enjoying music at its best. Large 10-1/2" reel capacity permits maximum 12 hours recording/playback in mono  or 6 hours in stereo.

High-performance with GX Head

Akai's  GX head which symbolizes the company's lead in the industry, makes its appearance once again, in the GX-620. GX stands for glass and crystal and the head, in fact, is made of special low-noise crystal ferrite set in super hard glass. This durability, besides affording longer head life, also yields a better dynamic range and improved Signal-to-Noise ratio. Three separate heads - erase, reord and playback - enable off-the-tape monitoring. The contourless GX playback head reduces fluctuations in the playback level in the low frequency range and being focsed-field, the high-frequency characteristics are also improved.

Three-Motor, Direct Capstan Drive System

The GX-620 employs Akai's new C.P.G AC servo motor for the capstan drive. A Sample- and-Hold circuit is incorporated in the servo circuit which improves the response characteristics of the servo to maintain the speed accuracy and reduce vibrations emanting from the motor. A major result is that wow and flutter are reduced to a low 0,08% (DIN) 0,04% (WRMS).

Remote Control System

Operating the GX-620 becomes even easier if you use the RC-18 Remote Control Unit (with Cable) or RC-70 unit. Instead of a long cable which is easy to trip over, the RC-70 sends an invisible stream of infra-red rays to the deck to effect mode change. Connect the RC-18 to a timer and you can make unattended recording while you are out or set the timer for timed playback.

Specifications

Track System:  4-track, 2-channel stereo/monaural system

Reel Capacity: up to 10-1/2: reel

Tape Speed:  19 cm/s ±0,8% (7-1/2"); 9,5 cm/s ±1,0% (3-3/4")

Wow and Flutter: 

Less than 0,03% WRMS (0,08% DIN 45 500) at 19 cm/s

Less than 0,04% WRMS (0,10% DIN 45 500) at 9,5 cm/s

Frequency Response:

30 to 26,000 Hz ±3db at 19 cm/s (WR tape)

30 to 19,000 Hz ±3 dB at 9,5 cm/s (WR tape)

Distortion:  less than 0,5% at 1,000 Hz, 0 VU

Signal-to-Noise Ratio:  better than 62 dB DIN 45 500 at 19 cm/s

Erase Ratio:  better than 70 dB at 1,000 Hz

Cross Talk:   better than 40 dB at 1,000 Hz

Channel Separation:  better than 55 dB at 1,000 Hz

Bias Frequency:  100 kHz

Heads:

One GX recording head,

One playback head,

One erase head

Motors:

One AC servo motor for capstan drive

Two AC eddy current motors for reel drive

FF & RWD Time:  120 sec. Using 550 m (1,800 ft) Tape

Output Jacks level/Impedance:

Line :  0,775 V (0 VU) Required load impedance more than 20 k Ω

Phone :  100 mV/8 Ω

Input Jacks Sensitivity/Impedance:

Microphone :  0,25 mV Required microphone impedance 600 Ω

Line :  70 mV / 100 k Ω

DIN Jack Input :  2,0 mV/10 k Ω

DIN Jack Output :  0,3V 

Power Requirement:  110 - 120 V, 220 - 240 V, 50/60 Hz

Dimensions (W x H x D):  440 x 446 x 241 mm (17,4 " x 17,6" x 9,5")

Weight:  17,6 kg (38,9 lbs)