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 DE-70

 Dynamic Sound processor Stereo Graphic Equalizer

Newly developed dnamic sound equalization circuitry with years of experience in the design and production of professional equipment.
Idependent twelve bands control for each channel.
A full array of functions ready for the era of taping.
Highly refined design sophistication.
Built-in an expander function for wide dynamic range.
Specifications
Frequency Response:  10 Hz - 200 kHz +0, -2,5 dB
Maximum Output Voltage:  8 V
Rated Output Voltage:  1 V
Total Harmonic Distprtion:  0,003%
Input Sensitivity:  1 V
Dynamic Range:  113 dB (1 kHz)
Input Impedance:  40 k Ω
Output Impedance:  800 Ω
Gain:  0 dB ±0,2 dB
Variable Range:  ±12 dB (max)
Center Frequency:  16; 31,5; 63; 125; 250; 500 Hz - 1; 2; 4; 8; 16; 32 kHz
Expander Function:  With On/Off functon, level control and peak indicator
Dynamic Function:  With On/Off function, level control and peak indicator
Power Source:  110, 120, 220, 240 V 50/60 Hz
Power Consumption:  20 W
Dimensions (W x H x D):  432 x 132 x 300 mm
Weight:  6 kg

Product Year:  1983
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