2G—10 Band Stereo Graphic Equaliser circuit diagram

This circuit should be connected prior to the amplifier circuit. To achieve optimal performance, it is recommended to utilize high-quality electronic components such as metal film resistors, MKM capacitors (non-polar), and tantalum capacitors (bipolar). The power supply module can be substituted with a regulated and stabilized power supply, or alternatively, an IC LM7815 can be added after R35, and an IC LM7915 can be added after R36.

The circuit outlined is designed to enhance the performance of an amplifier by ensuring that it receives a clean and stable power supply. The use of high-quality components is essential in minimizing noise and distortion, which can significantly impact the amplifier's output quality. Metal film resistors are preferred due to their low noise characteristics and high precision, making them suitable for audio applications where signal integrity is paramount.

MKM capacitors are non-polarized, making them versatile for various applications, while tantalum capacitors offer excellent capacitance stability and reliability in bipolar configurations. These choices contribute to improved frequency response and transient response in the circuit.

The inclusion of a regulated power supply is critical for maintaining consistent voltage levels, which is essential for the reliable operation of the amplifier circuit. The LM7815 voltage regulator provides a stable +15V output, while the LM7915 provides a stable -15V output. Connecting these regulators after resistors R35 and R36 ensures that the amplifier receives the necessary dual power supply voltages, which are often required for operational amplifiers and other audio processing devices.

In summary, the circuit serves as a vital precursor to the amplifier, ensuring that it operates under optimal conditions with minimal interference from power supply fluctuations. The careful selection of components and the implementation of voltage regulation are key factors in achieving high-performance audio amplification.This circuit must be connected before the amplifier circuit. For maximum performance, you may use high quality electronic component such as metalfilm resistor, MKM capacitor (nonpolar), tantalum capacitor (bipolar). You may replace the power supply module with regulated and stabilized power supply or just add IC LM7815 after R35 and IC LM7915 afte

r R36. 🔗 External reference