CA components should be installed in /Library/Audio/Plug-Ins/Components/
according to the docs at http://tuvix.apple.com/documentation/MusicAudio/Conceptual/CoreAudioOverview/ARoadmaptoCommonTasks/chapter_5_section_6.html
/Library/Audio/Plug-Ins/Components/ is the place to install CoreAudio plugins not /Library/Components/