With AudioUnits and hosts multiplying practically daily, users with growing collections of both soon want to be able to specify subsets of AudioUnits to be loaded with particular hosts. AudioUnit Manager provides a simple way to organize AudioUnits into sets so users can load just the AudioUnits they need for a particular application. This can mean accelerated application launch times and exclusion of incompatible AudioUnits for some hosts. AudioUnit Manager's command line option makes it possible to select a set in an AppleScript before launching an AudioUnit host. AudioUnit Manager also makes tedious trial by error trouble shooting easier by allowing simple disabling of an AudioUnit.