IC audio power amplifiers generally are capable of providing very low pop and click on turn-on and turn-off. Still, errors in the design of the circuits around them can lead to pop or click in spite of this capability. However, the circuit requirements for low pop and click are straighforward.
WIth the right presentation these requirements are easy to understand, so that an engineer is equipped to do a correct design. The attached training presentation, IC Audio Power Amplifiers: Minimizing Pop and Click on Turn-On and Turn-Off, provides the information a design engineer needs to succeed.