Question: where are vsts on mac?
Answer: Macintosh HD:/Library/Audio/Plug-Ins/Components/ (AU . component file extension)
Macintosh HD:/Library/Audio/Plug-Ins/VST/ (VST 2 . vst file extension)
Macintosh HD:/Library/Audio/Plug-Ins/VST3/ (VST 3 . vst3 file extension)