WEE Technology Company Limited - WEE are Capacitors Specialist

WEET WMC MPA MPP MKP CBB19 630VDC 2.2uF 5% Audio Amplifier Capacitor

What is the main function of capacitors in audio amplifiers?

Generally capacitors in audio amplifiers has below seveval functions: 

In Biasing,  they Block DC signal flow

In Biasing,  they Pass AC signal flow

In Feedback,  they can integrate a signal

In Filters,  they can differentiate a signal

As a rule the bigger the value of capacitance the lower the frequency ( FQ ) that will pass through the cap.

If the capacitor goes to ground it diminishes ( shunts ) lower FQ signals out of the amplifier.

If the capacitor goes in series with the signal path in (pass mode) it increases the lower FQ of the amplifier.