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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 CR-80D 8-track tape deck

8-Track Stereo Cartridge Tape Deck with a One-Micron GAP head

Outstanding Features

One-micron Gap head for extra wide Frequency Response

Fast Forward

Solid State pre-amplifier with 2 ICs

Universal Voltage Selector

DIN Jack and Stereo headphone Jack

Recording indicator lamp

Two VU meters

Automatic Stop control

Optional Two matching high compliance speakers

 

Akai's one-micron gap head is responsible for an amazingly important difference in tape recording. It's the difference between ordinary performance and the highest possible quality perfection.

Just what is a one-micron gap head? It's a head with a width of only one astounding micron. Until now two or four micron gap heads have been the standards for comparing tape recorders. However, Akai has pushed ahead and narrowed the head gap; thus narrowing the difference between tape recording results and actual sound.

The Akai perfected one-micron gap head has these distinctive advantages over heads with wider gaps:

Excellent frequency response even at low tape speed

Clesr, high pitched sound can be regenerated as a frequency tone and recorded smoothly with a minimum of distortion

 

8 -track Cartridge recording System

Model Capture Ratio-80D employs the 8-track stereo system. The tape has a total of 8 tracks, two of which are used at a time for stereo recording or playback. There are four choices of channels. At the end of the tape, the next channel is automatically positioned for recording or playback. Recording or playback time for one channel is 15 minutes (one continuous hour on 4 channels using a 300 ft. Tape). Desired channel can easily be selected by operating the Cartridge Program Selector Button.

 


Specifications

Tape Speed: 3-3/4 ips

Wow and Flutter:  less than 0,25% rms

Frequency Response:  50 to 16,000 Hz ±3 dB

Signal-to-Noise Ratio:  better than 47 dB

Input Level

Microphone jack :  better than 0,5 mV

Line Jack :  better than 50 mV

Output Level:  0 VU (1,23 V rms)

Equalization:  Correct equalization for playback of tape recorded to the NAB curve

Recording Bias Frequency:  65 kHz

Recording Level Indicator:  Two VU Meters

Recording System:  8 Track Stereo

Heads:  Rec/Playback and Erase heads

Fasy Forward Time:  230 sec. 300 ft. Cartridge tape

Recording Capacity: one hour stereo with 300 ft. Cartridge tape

Motor:  two-speed induction motor

Semiconductors:  12 Transistors; 2 ICs; 12 Diodes

Voltage:  AC 100V to 240 V , 50/60 Hz (6 voltage selections)

Power Consumption:  60 W

Dimensions345 x 250 x 135 mm (12-1/2" x 10" x 5-1/2")

Weight:  7,9 kg (17,4 lbs)


 

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