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Akai Tape Deck Models

Akai GX 747D

a typical GX 747D deck

Specifications

Track System4-track, 2 channel stereo system
Reel CapacityUp to 10-½ in.
HeadsErase Head: (x2)
Recording head: GX head (x2)
Playback head: GX head (x2)
MotorsAC servo motor for capstan drive x1
AC Eddy current motors for reel drives x2
Tape Speed19 cm/sec. ±0.8% (7-½ ips.)
9.5 cm/sec. ±1.0% ( 3-¾ ips.)
Pitch control: more than ±6%
Wow & FlutterLess than 0.03% WRMS, 0.07% DIN 45 500 at 19 cm/s
Less than 0.04% WRMS, 0.09% DIN 45 500 at 9.5 cm/s
Tape Winding Time75 sec. using a 1200 ft. tape
Frequency Response
(EE Tape)
25 to 33,000 Hz ±3dB (-20 Vu) at 19 cm/s
25 to 26,000 Hz ±3dB (0 Vu)
25 to 25,000 Hz ±3dB (-20 Vu) at 9.5 cm/s
25 to 15,000 Hz ±3dB (0 Vu)
Signal to Noise RatioBetter than 65dB at 19 cm/s (DIN 45 500)
Harmonic DistortionLess than 0.4% at 19 cm/s
InputMIC: 0.35 mV (input impedance 5.0 kohms.)
Required Microphone Impedance: 600 ohms
Line: 70 nV (input impedance 100 kohms)
OutputLine: 0.775V at 0 Vu
Required Load Impedance: more than 20 kohms
Phone: 1.3 mW/8 ohms at 0 Vu
DINInput: 2 mV (input Impedance 10 kohms)
Output:0.3V
Required Load Impedance: More than 20 kohms
Dimensions Wide: 17.3”
High: 19”
Deep:10.1”
Weight46 lbs unpacked

Document by DanDLyin. DanDLyinLast Modified 26 March, 2006
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