There have been a growing number of Mavericks users that reported problems on forums about using their USB or FireWire interfaces with Apple’s latest operating system.

The today announced update for OS X might finally bring a solution. Apple explicitly names sound distortion problems as being fixed in Mavericks 10.9.2. The problems in forums vary from no sound at all through USB interfaces to pops, spikes and crackles coming out of the interface.

As always it is best not to install the update from the App Store. Instead many audio DAW developers recommend you to download the combo updater which is available for download from Apple’s support pages.

Here’s the top ten fixes from the list of fixes with the audio distortion fix mentioned:

– Adds the ability to make and receive FaceTime audio calls
– Adds call waiting support for FaceTime audio and video calls
– Adds the ability to block incoming iMessages from individual senders
– Includes general improvements to the stability and compatibility of Mail
– Improves the accuracy of unread counts in Mail
– Resolves an issue that prevented Mail from receiving new messages from certain providers
– Improves AutoFill compatibility in Safari
– Fixes an issue that may cause audio distortion on certain Macs
– Improves reliability when connecting to a file server using SMB2
– Fixes an issue that may cause VPN connections to disconnect

This list and full information on the update and the security content of the update can be found on Apple’s website.

[Update]
Good news! Different sources have also confirmed that the problems with the MBox 2 – not giving any sound under Mavericks – have also been fixed with the OS X Mavericks 10.9.2 update.