If you route your audio through a dedicated desktop DAC before it reaches your headphones, sending a clean, unaltered digital signal ensures the highest possible fidelity. When Standard "Speakers" Is Better
: This signal travels through a dedicated digital port—either an optical S/PDIF port (Toslink) or a digital coaxial port.
The short answer is , but it depends entirely on your audio setup. realtek digital output better
Overview
Plug the optical cable into your PC and your receiver. If you route your audio through a dedicated
Right-click on "Realtek Digital Output," select "Properties," and navigate to the "Enhancements" tab. Check the box that says "Disable all sound effects" . This turns off all virtual surround, equalization, and "loudness" filters that would color the sound before it leaves your PC, providing a clean signal for your external DAC or receiver to process.
Realtek Digital Output refers to the (Sony/Philips Digital Interface) signal. This is a raw digital stream transmitted via either a Toslink optical cable (which uses red light) or a digital coaxial cable . Overview Plug the optical cable into your PC
Find and set it as the Default Device .