Troubleshooting
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Owner’s Reference
DirectStream DAC MK2
®
PS Audio® Inc. 800-PSAUDIO 4865 Sterling Drive Boulder, Colorado 80301
USB – DirectStream MK2 not recognized, or no sound via USB
To play music from your computer into the DirectStream MK2 via USB you must have a
driver installed that communicates with the DirectStream. On a Mac computer with OSX or
Monterey the drivers are already available and the unit should be automatically recognized.
You can then go and choose the PS Audio USB driver to play to by going to System
Preferences->Sound and select the PS Audio PerfectWave. You can also go to Applications-
>Utilities->Audio Midi and select the driver as well as set the same rate.
On Windows the drivers are not yet available for automatic recognition. You will need to
download the PS Audio High Resolution USB driver which can be downloaded from our
website.
You can also contact our support staff via email or phone or simply go to
www.psaudio.com and click on the Downloads page for the download. You must then unzip
the driver and install it on your Windows machine. Once installed, Windows will recognize the
DirectStream MK2 and allow you to select it for playback from any program on your computer.
If you are unable to obtain sound via USB on a Windows based device it is most likely the
result of a partial or incorrect driver installation.
You may have also experienced a pop-up window asking you to provide the correct driver.
In any of these cases the remedy is quite simple. Remove the device and force Windows to
reinstall the driver and the device.
DirectStream MK2
will show up under
device manager as “PS
Audio High Resolution
DAC” The entry under
“Sound video and
game controllers” is the
USB1.0 fallback driver.
USB not
connecting
9
