TOMIS Just a note. On 10.5.6 PPC I was able to simply copy SoundSource.menu from inside the installer package, double-click it, and it installed in my menubar without the need for the Menu Extra Enabled hack that the installer also places in the system. I noticed no functional difference vs. when the input manager hack was installed.
SoundSource won't let me switch between line in and mic. I have Soundflower installed, and it lets me select the two Soundflower sources as inputs. That's my only real problem with SoundSource.
(Version 2.0)