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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 CS-50D cassette tape deck

Super Cassette Stereo Tape Deck

Akai has done it again. The CS-50 with "Invert-O-Matic" is the first Cassette Tape Deck in the world capable of Reverse Recording and Playback

Outstanding Features

Automatic and manual reverse "invert-O-Matic"

Automatic Stop/Automatic Shut-Off (cuts off power of unit)

Continue Reverse

Push Button Control Panel (Record, rewind, Stop, Play, Fast Forward)

Slide Type Volume Controls

"See through" window for determining tape position

Two Integrated Circuits (IC)

Two VU Meters

Index Counter with Reset Button

Universal Voltage Selector and Cycle Conversion Switches

Microphone, DIN, stereo headphone jacks and Line input and output Pin jacks

 


Invert-O-Matic

Akai engineers have investigated and developed ways of perfecting all of the weak points in cassette recording and playback. These improvements made from every angle have been concentrated in the most "up-to-date design" to bring you the World's First top rate performance Akai Cassette Invert-O-Matic Tape Deck

The Invert-O-Matic is an epoch-making automatic reversing system. By the mere pressing of a button, the cassette will reverse itself automatically inside the tape deck. This system will not only do away with the trouble of setting the cassette by hand in future, but the new tape movement mechanism is simplified and because of the stability mechanism and high performance, this new device produces amazingly true hi-fi sound.

By depressing the Auto Button during playback, continuous revers is actuated (at the end of the tape, the cassette will automatically invert and playback will continue for as long as is desired). When the Manual Revers Button is depressed, instant manual reverse is effected.

Akai is the World's First to succeed in developing automatic and manual reverse applicable during recording. With this new mechanism, a C--120 cassette tape will accommodate two hours of uninterrupted recording.

 

A Wonderful Combination

The CS-50D employs the very simplest and easiest loading method. Just insert cassette into slot provided. For removal of cassette, simply press the Cassette Eject Button

The CS-50D employs a 4-Track Stereo recording and Playback System.

For playback, and external power amplifier and a pair of hi-fi speakers are required Akai Models AA-6300 amplifier and SW-125 speakers, are highly recommended.

 


Specifications

Tape Speed:  1-7/8 ips

Tape Speed Deviation:  within ±2%

Wow and Flutter:  less than 0,2% rms

Frequency Response:  30 - 16,000 Hz (±3 dB)

Signal-to-Noise Ratio:  better than 45 dB RMS

Distortion:  within 2% (1,000 Hz "0" VU rec)

Erase ratio:  less than -70 dB

Recorder Bias Frequency:  100 kHz

Recording level Indicator:  2 VU meters

Recording/Playback Head:

Type :  In-Line 4-track Stereo

Impedance:  1,100 Ω  at 1 kHz

Erase head: 

Type :  In-Line 4-track Stereo

Impedance:  730 Ω  at 100 kHz

Recording System:  AC Bias system

F.F wd and rewind Time:  75 sec. C-60 cassette type

Line Output Level:  1,3 V ("0" VU) for tape recorded at "0" VU

Line Output Impedance:  10 k Ω

DIN Output Level:  0,4 V

Stereo Headphone Impedance:  8 Ω

Line Input Impedance:  220 k Ω

DIN Input Level/Impedance:  3 mV/ 25 k Ω

Mic Input Level/Impedance:  0,2 mV/4,7 k Ω

Monitor System:  Stereo Headphones

Recording Capacity:  2 hrs. Stereo recording using C-120 cassette tape

Motor:  Outer-rotor synchronous motor

Semiconductors:  11 Silicon Transistors; 8 Diodes; 2 ICs

Power Requirements:  100 V to 240 V AC 50/60 Hz

Power Consumption:  25 W

Dimensions (W x H x D):  375 x 160 x 287 mm(15" x 6-1/4" x 11-1/4")

Weight:  7,84 kg (15,8 lbs)


 

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