I want to build (or buy) a small headphones amp that I can stick to the back of an Xbox controller. This is because my Sennheiser HD650s will not work well with the headphones output from it. Would it be possible to use the USB-C port on the controller for power and the headphone jack as a source?

I wanted to buy something like this, but I can’t find anything near as small as it and it is no longer produced:

https://theheadphonelist.com/nuforce-mobile-music-pump-mmp-review/

Any suggestions?