The 2020 iMac has incorporated a brand new three-mic studio array with directional beamforming , which enhances the sound quality as compared to its predecessors, still the iMac Pro comes out as the winner with a better microphone system. iMac Pro comes with four built-in microphones which are also equipped with directional beamforming for superior audio quality. It may not be the case for some users who often make use of the built-in microphones for making calls, recordings or creating content.