No function OS X upgrade to Mountain Lion, Mavericks, Yosemite
When using MAYA44 USB
after an upgrade to OS X 10.8 (Mountain Lion), to OS X 10.9 (Mavericks) or OS
X 10.10 (Yosemite) it might happen, that the device cannot be selected anymore
inside your audio application and/or no playback and recording is possible.
This issue typically appears when our driver version 2.1.0 has been installed
before the upgrade. This driver does not work anymore under OS X 10.8, OS X
10.9 or OS X 10.10 and is not required, so it should be removed and uninstalled.
To do this, you might need to download our driver package version 2.1.0 from
our website again - not to install anything from it, but to use the included
uninstaller in that package. If you have problems launching the uninstaller,
have a look here.
For OS X 10.8 you can find additional information here,
for OS X 10.9 here and for OS X 10.10 here.
If you did not make the OS X upgrade yet, it is better to remove the driver
before you do so.