The Stealth 520 was designed for PS3 and PS4 consoles only. We are unable to guarantee universal PC compatibility for the Stealth 520.
With a firmware update released in 12/2016, it is possible to use the Stealth 520 properly on a PC. Firmware update instructions and the Turtle Beach Audio Hub download link are detailed in the Turtle Beach Audio Hub - Firmware Update for PS4 Without Optical article. The firmware update modifies the controls on the Stealth 520 to work without an optical cable connection from the transmitter. A Stealth 520 PC setup will only use the USB path.
The following info is provided on an unsupported AS-IS basis.
• Windows or Mac PC with:
• 1 empty USB 2.0 port
PC Setup & Windows Settings:
1. Connect the transmitter to a USB port on your PC.
2. Go to Control Panel > Hardware and Sound > Sound (or right-click the speaker icon in the taskbar), go to the Playback tab, right-click "Speakers - Turtle Beach Stealth 520 Chat" and select "Set as Default Device".
3. Click on the Recording Tab and select "Microphone - Stealth 520" as the Default Device.
4. Once the Default Devices have been selected, click 'OK'.
Your PC Sound Settings are now configured for Game Audio and Microphone use.
Please note that settings within chat software will still need to be configured separately.
The following diagram describes the controls on the Stealth 520 with and without an optical cable connection. The controls listed under "Headset Controls without Optical" are the controls that will be active on a PC.