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

Denon TU-850

 FM Stereo Tuner TU-850
5-gang variable capacitor, a complete front-end incorporating MOS-FET
Low-distortion, high-selectivity 2 system IF Section
PLL IC stereo demodualtor circuit
Unique design and high precision tuning system
Incorporates a recording level check
Equipped 2 large size multi-functioning level meters capable of mesuring amplifier output.

FM Section
Tuning Frequency:  88 to 108 MHz
Usable Sensitivity (IHF):  1,7 µV (9,9 dBf)
Effective Selectivity:  65 dB
Signal-to-Noise Ratio:  84 dB
Total Harmonic Distortion: 
Mono :  0,05%
Stereo :  0,08%
Capture Ratio:  0,8 dB
AM Suppression:  65 dB
Image Rejection:  120 dB
IF Rejection:  110 dB
Separation:  50 dB (1 kHz)
Level Meters Indicaton Error:  ±0,2 dB (Ext. Aft. -10 to +30 dB) 1khz
Frequency Response:  20 Hz - 15 kHz +0,2 dB -1 dB
Power Source:  AC 120 V 60 Hz; AC 220 / 240 V 50/60 Hz
Power Consumption:  13 W
Dimensions (W x H x D):  434 x 164 x 400 mm
Weight:  8,9 kg

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