Technics SH-8020

Commentary

Stereo frequency equalizer for sound creation and sound field correction.

The SH-8020 divides the wide band beyond the range of audibility into 12 bands, and each level can be changed within ± 12 db.
When fine level control is desired, the total variation can be controlled to ± 3 dB by operating the variable range switch.

Equipped with an equalizer position changeover switch, the output system of the speaker and deck can be selected with just a switch.

It is equipped with a characteristic switch that instantly produces inverse characteristics of the set frequency characteristics. In addition, pre-emphasis recorded sources can be played back to de-emphasis by simply switching the switch.

Each level control knob has a built-in LED for frequency control even in dark areas.
Indicators are also provided for related operating switches to make it easier to determine operating conditions.

Equipped with an equalizer on/off switch to easily check the effect of the equalizer.

Low distortion is achieved by a band-pass filter using a semiconductor inductor composed of a capacitor, resistor and semiconductor circuit without using any coil.

A 3-terminal regulator is used for power supply.

In order to suppress shock noise when the power is turned on/off, a muting circuit by relay is built in.

Model Rating

Type	Graphic equalizer
Frequency characteristic	5 Hz to 100 kHz -1.0 dB
Maximum output voltage	8 v (1 kHz, 0.01% THD)
Rated output voltage	1V
Total harmonic distortion factor	0.01% (20 Hz to 20 kHz)
Input sensitivity	1V
Signal-to-noise ratio (IHF-A)	105dB
Maximum Input Voltage	8V(1kHz)
Input impedance	47k Ω
Gain	0 ± 1 dB
Band level control	± 12 db, ± 3 db (12 elements continuously variable)
Center frequency	16 Hz, 31.5 Hz, 63 Hz, 125 Hz, 250 Hz, 500 Hz 1 kHz, 2 kHz, 4 kHz, 8 kHz, 16 kHz, 32 kHz
Pwer	100 VAC, 50Hz/60Hz
Power consumption	10W
External dimensions	Width 430x Height 153x Depth 244 mm
Weight	6.0kg