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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





Kenwood KT-413 (1979)

AM/FM Stereo Automatic Seequential Tuner

Automatic location and fine tuning of all stations with only a light touch to the tuning bars.

All LED operation and preselect of up to 5 FM and AM stations.

Left and Right tuning bars automatically locate the stations.

Fine tuning is accomplished by the automatic Servo Lock system.

Stop Level switch in High position limits selection only to strong broadcasts. In low position, all stations come through.

Convenient Preset switch for preselection of up to 5 stations for FM, 5 for AM.

Fast-acting Light Emiting Diode (LED) signal strenght display.

FM Mode Auto switch automatically adapts for stereo or mono operation according to broadcast conditions

FM Section

Sensitivity 30 dB Quieting: 10,8 dBf (1,9μV)

Sensitivity 50 dB Quieting: Mono: 17,2 dBf (4,0μV); Stereo: 37,2 dBf (40μV)

Signal-to-noise Ratio at 65 dBf

Mono: 77 dB

Stereo: 72 dB

Total Harmonic Distortion at 1 kHz

Mono: 0,1%

Stereo: 0,15%

Capture Ratio: 1,0 dB

Alternate channel Selectivity: 60 dB

Stereo Separation

at 1kHz: 50 dB

50 - 10 kHz: 40 dB

AM Section

Usable Sensitivity: 20μV

Signal-to-noise Ratio: 50 dB

Selectivity: 25 dB

Dimensions: 400 x 140 x 275 mm

Weight: 4,4 kg

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