The bigger the capacitor,
In theory, the main benefits of high capacity capacitors are:
1. The large-capacity capacitor can make the voltage stable and can withstand the instantaneous output of a large current. The power amplifier circuit will not be distorted when it is instantaneously high dynamic output.
2. The larger the capacitance, the more the AC interference can be filtered out, so the sound quality is more stable. The signal output from the amplifier is less interfered, the sound quality is better and fidelity.
3. Moreover, since the voltage on the capacitor cannot be changed suddenly when the power amplifier outputs a large power instantaneously (for example, there is a large subwoofer), the power supply voltage is not pulled down in an instant.
Why don't you use a larger capacitor?
In theory, for the capacitance, the bigger the better, but in practical applications, our engineers should consider both the rationality and cost of the overall design of the amplifier when changing the capacitance. Because the larger capacitor will generate a larger initial charging current, if it exceeds the tolerance of the circuit components, it will damage the amplifier.