Experience
the utmost in operating ease and capability with this "top of the
line" cassette deck.
This
prestige tape deck is designed for the ultimate in convenience and recording
and playback quality. Incorporates the world's most advanced engineering
techniques, mechanisms, and parts including Akai's GX Head, 3 Motor double
capstan drive system.
GX 3 Head, 3
Motor, Double Capstan Drive System.
Heads
The GXC-570D
is Akai's top front loading type cassette tape deck and, naturally employs
Akai's renown wear-free GX recording and playback heads. Further, a new head
arrangement assures perfect tracking so that clumsy azimuth alignment
mechanism, beacons, etc. are completely unnecessary.
With this
unique 3 head system, the recording and playback heads are mounted in a single
head holder. This arrangement provides perfect parallelism of recording and
playback head gaps and, because of the proximity of the heads, there is no
phase deviation between recording and playback head tracks. Azimuth loss is
also eliminated so that azimuth alignment, etc. is unnecessary. This new head
positioning plus the professional characteristics of the GX heads themselves
brings out the full capability of the tape. Also head-to-tap conect is improved
and ideal head shielding reduces feed through of magnetic flux.
Motors
A new C.P.G.
type AC Servo Motor and two completely new DC "slotless" rotor core
motors constitute the superior drive system of this model. The AC Servo capstan
drive motor is a C.P.G. (Center Pole Frequency Generated) motor with which a
center magnetic pole is established for equal radiation. Merits of this motor
include greater inertia and increased output for an extremely quiet motor with
perfectly accurate motor revolutions. For reel drive, the GXC-570D employs two
of Akai's brand new "slotless" DC drive motors. Because the core of
this motor is cylindrical (has no concave or convex parts), there is no
variation between the magnetic poles of the magnetic field. Thus, there is no
torque unevenness. These unique features result in smooth motor rotation for
the elimination of motor rotating noise and decreased woa and flutter.
Closed loop
double capstan drive.
One each
capstan and pinch roller positioned in parallel on either side of the head
block provides perfectly stable tape tension and tape speed. This system shuts
out the adverse influence from outside the "closed area" between
capstans so that there is no tape vibration. This together withthe 3 motor
drive system, extra large flywheels, and a specially designed head mounting
plate with linear ball bearing mechanism assures complete stability, perfect
head-to-tape contact, and reduces wow and flutter to 0,08% WRMS. So drop-out at
recording time is also minimized.
Use low
Noise, Chromium Dioxide, or ferri-Chrome Tape.
A 3-way Tape
Selector Switch sets the machine to ideal bias and equalization according tothe
tape being used. The ability to use quality tape compements the superior
mechanism of this machine for the optimum in recording and playback quality.
Repeat
playback plus memory Rewind.
When the
repeat Button is depressed, at the end of playback or recording mode, the tape
rewinds and the machine is automatically set to continuous playback mode. The
Memory Rewind Button can be used together with the Index Counter and set to
effect stop mode from rewind at any place on the tape. Memory Rewind can also
be used together withthe Repeat Button for automatically setting the machine to
continuous playback mode from memory rewind position.
Fast Forward
and Rewind Speed Control.
Adjust Fast
forward and Rewind time according to tape thickness. Prevents thin tape from
being broken at high speed.
Pitch
Control Playback
Modify
playback musical tone as desired with Pitch Control adjustment. Musical
interval can be changed by up to plus/minus 1 semi-tone (tape speed plus/minus
5%). Also convenient for precise adjustment of tape speed when playing back
tapes recorded on another machine.
Double
process Dolby And A-B Monitoring.
This machine
incorporates the Double Dolby process system wherein low level signala are
raised prior to recording and lowered proportionately at playback time. With
this process, extraneous noise is eliminated, also eliminating tape hiss. The
GXC-570D's 3 head system and Tape Monitor Switch facilitates A-B monitoring,
and the Double Dolby process extends this feature to Dolby recording as well.
Further, because there is no space between the recording and playback heads,
ther is no time lag between recorded and played back signals during monitoring.
Thus, truly professional results are attained.
Other
Important Features:
Precise
Recording Calibration
Akai's A.D.R. (Automatic Distortion Reduction)
System
Meter
Selector Sets Meters for VU Meter or Peak Meter Indicator
Sound Mixing
form Separate Sources
Smoothe
Logic Circuit Operating Controls Feature Direct Function Change
Limiter
Switch Cuts Distortion for Clear Recording at Close Range
Front
Loading Convenience
MPX Filter
Switch
Automatic
Tape Setting Prevents Tape Slack and Assures Stable Tape Start
Double
Action Oil Damped Cassette Eject
Instantaneous
Full Release Automatic Stop
Automatic
Door Opener
Pause
Control and Output Level Control
Specifications
Track
System: 4-track, 2-channel stereo system
Tape: Compact Cassette Type
Tape
Speed: 1-7/8 ips (pitch control playback
±5%)
Wow and
Flutter: less than 0,06% WRMS (less than
0,17% DIN 45500)
Frequency
Response:
30 Hz to 15
kHz (±3 dB) : using low noise tape
30 Hz to 16
kHz (±3 dB) : using CrO₂ tape
30 Hz to 19
kHz (±3 dB) : using Fe-Cr tape
Distortion: less than 1% (1,000 Hz "0" VU)
using low noise tape
Signal-to-Noise
Ratio: better than 52 dB
Erase
Ratio: better than 70 dB
Bias
Frequency: 100 kHz
Heads: GX recording head; GX playback head; GX erase head
Motors:
One - AC Servo outer-rotor motor for capstan
drive,
Two - DC motors for reel drive
Fast
Forward/Rewind Time: 60 to 80 seconds
(variable) using a C-60 Cassette tape
Output
Jacks:
Line
: 0,775 V ("0" VU)/ more than
20 k Ω
Phone
: 50 mV/ 8 Ω
Input Jacks:
Microphone
: 0,3 mV/ 600 Ω
Line
: 70 mV/ 100 k Ω
Semiconductors: 110 Transistors; 159 Diodes; 12 FETs; 9 ICs
Power
requirement: 110 V to 240 V, 50/60 Hz
(switchable)
Dimensions
(W x H x D): 440 x 255 x 255 mm
)17,3" x 10,0" x 8,9")
Weight: 13,5 kg (28,5 lbs)
Optional Accessories:
RC-17 or RC-18 Remote Control