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What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





Akai GXC-730D


This front loading design reverse recording and playback stereo tape deck features an unusual number of "extras" for operating convenience and versatility. Quality GX Head performance.

GX Head
Akai's GXC-730D stereo tape deck features GX Head forward and reverse recording and playback. The GX recording/playback head is centrally positioned between two stout capstans for complete stability in both directions.
Automatic and manual playback and recording in both directions, convenient front loading design, and Tape Direction Indicator lamps offer the ultimate in operating ease.

Automatic Stop or Automatic Stop and Play mode from fast Forward or Rewind with "Memory Wind"
Presetting the Index Counter and depressing the Memory Wind Button is all that is necessary for automatic stop at any position on the tape from fast forward or rewind. Extend this feature to include automatic setting to play mode by depressing a Play Key together with the Fast Forward or Rewind Key.

Soft-Touch Solenoid Direct Function Chnge Control
Easy soft-touch operating controls feature direct function change. This feature extended to recording mode enables easy add-on recording. Further,, after recording mode enables easy add-on recording. Further, after recording mode has been effectedd, simply depressing the Forward or Rewerse Play Key is all that is necessary to effect reverse recording mode. Another "extra" of this control system is the ability to effect automatic play mode at the end of the tape from fast forward or rewind by depressing a Play Key together with the Fast Forward or Rewind Key.

Akai's A.D. (Automatic Distorion reduction) System
Akai's built-in A.D. System not only automatically adjust the recording equilization at high frequencies, but also suppresses intermodulation distortion for clear sound over the entire frequency band.

Reverse Selector
One-way,one cycle (forward and rewerse) or continuous playback mode is as easy as setting a front panel Reverse Selector. This unique reversing circuit operates in the same way at recording mode as well, except when set to continuous mode, one cycle recording and automatic setting to continuous play mode is effected. This extra feature keeps your recording from being erased by mistake and enables automatic continuous playback of just recorded material.


Specifications:
Track System:  4-track, 2-channel stereo system
Tape:  Philips type cassette tape
Tape Speed:  1-7/8 ips.
Wow and Flutter:  less than 0,08% WRMS (NAB; 0,24% (DIN 45507)
Frequency Response: 
LN Tape :  30 Hz - 14,000 Hz (±3 dB)
CrO₂ Tape :  30 Hz - 16,000 Hz (±3 dB)
FeCr Tape :  30 Hz - 17,000 Hz (±3 dB)
Distortion:  less than 1,5% using LN tape (1,000 Hz 0 VU)
Signal-to-Noise Ratio:  better than 50 dB (measured via tape with peak recording level of +3 VU)
Dolby Switch ON:  improves up to 10 dB above 5 kHz
Erase Ratio:  better than 70 dB
Bias Frequency:  100 kHz
Heads:  3
1 x GX recording/playback head for forward and reverse direction
2 x erase head
Motor:  4-pole hysteresis synchronous motor
Fast Forward/Rweind Time:  70 sec. Using C-60 cassette tape
Output Jack: 
2 x  Line :  0,775 V (0 VU). Required load impedance more than 20 k Ω
Phone :  50 mV/8 Ω
Input Jacks:
Microphone x 2 :  0,3 mV/4,7 k Ω . Required microphone impedance 600 Ω
Line x 2 :  70 mV/ 100 k Ω
DIN Jack: 
Input :  3 V/ 25 k Ω
Output :  0,55 V
Semiconductors:  56 Transistors; 121 Diodes;  2 ICs
Power Requirements:  120 V, 60 Hz (CSA, UL, LA models)
Other Modeles:  110/120/220/240 (switchable) 50/60 Hz
Dimensions (W x H x D):  400 x 175 x 302 mm (17,3" x 6,9" x 11,9")
Weight:  12 kg (26,5 lbs)


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