The power amplifier anti-interference ability not how to do

Amplifier anti-interference ability, in fact, depends on the connection line, and with what amplifier chip also has a great relationship. For example, the genuine TDA2030A can be anti-interference will not be affected by cell phone signals, domestic common 2030 can be affected by cell phone signals. In fact, the connection line inside the amplifier with shielded wire can reduce the impact of cell phone signals and various interference signals. There is not enough power, you can increase the output power by replacing the larger power tube. At the same time using a toroidal transformer for power supply is better, high efficiency, anti-interference ability. Machine wattage and power is too low, change a larger amplifier is good.