RME ADI-2/4 Pro SE

This DAC has everything I wanted. It's packed with features, and both the software and firmware are reliable and work flawlessly.

I use several headphones and monitors, and it's great to switch between them easily without worrying about your eardrums blowing out because the device remembers the volume settings for each output.

If you prefer not to use the physical controls on the device, there's also a handy app that lets you manage everything directly from your computer.