Mac Pro Audio Update 1.0
System Requirements:
Mac OS X 10.6.2
File Size: 1.64 MB
This update is for Mac Pro (Early 2009) computers running Mac OS X v10.6.2. This update reduces processor utilization during audio activities, such as playing or recording music.
For detailed information on this update, please visit this website: http://support.apple.com/kb/HT4034