As you know, the frequency response of the room intended for listening should be linear. It should not contain peaks and dips that can affect the resulting sound received in the room with the help of a sound amplification system.
There are different ways to achieve a sound level balance between the low-frequency and high-frequency sections of the sound system. This balancing is an important stage of tuning the sound engineering complex.
The acoustic design of rooms in which sound systems are installed is rarely ideal. Smooth solid surfaces of the stage and floor, concrete or brick walls, interior elements create great problems for obtaining a high-quality sound. To solve these problems, in addition to the crossover, it is often necessary to include another device in the sound engineering complex – an equalizer designed to correct the amplitude-frequency response (frequency response) of the audio signal.
Switching the frequency of inflection of the frequency response of the regulator in the frequency range 1…8 kHz allows you to vary the “sonority” and “clarity” of the sound of the phonogram, and in the frequency range 250…700 Hz — “volume” and “softness”.
- Rated input voltage, V … 0,775
- Input impedance, kOhm … 100
- Gain factor at a frequency of 1 kHz … 1
- Harmonic coefficient, % (at nominal input voltage) … 0,01
- Signal-to-noise ratio (unweighted), dB …. 90
- Adjustment range ( in increments of 2.4 dB), dB … ±12
- Frequency of inflection frequency response, Hz
- 60, 200, 400, 500, 700, 1000, 3000, 4500, 6500, 8000
- Channel unbalance is not more than …. 0.1dB
To increase flexibility, the corrector is equipped with a switch of the signal path to the cold and hot bypass.
Components from Vishay Precision, Grayhill and Burr-Brown (TI) are used to obtain ultra-low noise, a large dynamic range and high control accuracy.
