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





Toshiba ST-445

 Toshiba Digital Sythesizer Tuner ST-445
Specifications:
FM Tuner Section
Frequency Range:  87,5 - 108 MHz (0,1 MHz step)
Sensitivity (IHF):  1,9 µV (10,8 dBf)
Harmonic Distortion [Mono/Stereo]:  0,15% / 0,3% (1 kHz)
Signal-to-Noise Ratio [Mono/Stereo]:  72 dB /68 dB
Frequency Response:  30 - 15,000 Hz ±1,0 dB
Selectivity (IHF):  70 dB (±400 kHz)
Image Rejection:  50 dB
IF Rejection:  80 dB
Capture Ratio:  1,5 dB
Spurious Response:  70 dB
AM Suppression:  55 dB
Stereo Separation:  40 dB (at 1 kHz)
Output:  650 mV 9400 Hz, 100% Mod.)
AM Tuner Section
Frequency Range:  525 - 1605 kHz (1 kHz step)
Sensitivity:  300 µV/m
Selectivity:  30 dB
Image Rejection:  40 dB
Signal-to-Noise Ratio:  50 dB
General
Memory:  6 Channels each band
Functions: Manual tuning up and down; Rec calibration
Power Supply:  AC 120 V /220 V; 50/60 Hz
Power Consumption:  9,5 W
Dimensions (W x H x D):  420 x 146 x 257 mm

Weight: 3,3 kg
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