I second Jim’s nomination. I also use the DH Labs D110, but whichever you choose to use, make sure it is 110 Ohm.
https://devialetchat.com/Thread-D400-VS-...8#pid85008
See post #5.
https://devialetchat.com/Thread-D400-VS-...8#pid85008
See post #5.
Oppo BDP-105 - Roon lifetime - Dutch & Dutch 8c - Fiio R9
South Coast England

