SoundSource 5.3.4, released on , by Rogue Amoeba, is a significant update for the macOS audio control utility, focusing on performance optimizations and refined device support. Key Features & Enhancements

The main window now handles display boundaries better, preventing it from growing larger than your screen, while scrolling in the "System" section has been improved to allow for unlimited effects on system output.

This version introduces "massively faster" device switching, significantly reducing lag when moving audio between different outputs.

SoundSource now supports custom channel mappings for multi-channel devices, giving pro-audio users more granular control over how sound is routed.

Are you looking to use SoundSource for a or just for better control over your daily Mac audio? SoundSource Release Notes - Rogue Amoeba