I have a 2015 MacBook Pro that I primarily use as my mobile rig. It has USB and Thunderbolt 2 ports. I’m looking for an incredible sounding DAC that I’ll primarily use with headphones. Ideally, I don’t want to use a DAC that’s only bus powered. I used an apogee Duet 2 in the past, but I didn’t think it sounded particularly clear. I love the sound of the Dangerous Source, but it’s not as portable as I’d prefer. My hope is to learn about a hidden gem that was perhaps top tier years ago that can now be found as a great deal on the used market.

Any recommendations are appreciated!