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Graphic equalizer "Corvette-004-stereo" since 1982, produced Taganrog factory Surf. the equalizer is designed to adjust the frequency response from the sources of low-frequency signals, voltage 250 ... 1000 mV. It contains 2 channels, each of which adjusts the signal level at 10 frequencies. Adjustment is made by discrete sliders, providing a change in the output voltage in accordance with the applied scales, allowing you to get a clear picture of the change in the frequency response. Existing indicators exclude overloading of UZCH. The operating frequency range is 20 ... 20000 Hz. The harmonic coefficient of 0.02%. Crosstalk between 55 dB channels. The signal / weighted noise ratio is 100 dB. The input impedance is 47 kΩ. The limits of regulation of the output voltage at frequencies of 31.5; 63; 125; 250; 500; 1000; 2000; 4000; 8000; 16000 Hz ± 11 ... 13 dB. The signal / background ratio is 90 dB. The power consumed from the network is 8 watts. The equalizer dimensions are 480x110x282 mm. Weight 5.1 kg. The price is 250 rubles.