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.
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.
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)
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