PinkyPowers
Reviewer: The Headphone List
The DC01 can be used out of any USB C port for digital to audio conversion so it works well with a computer or phone.
I notice the bass on the AMP9 is better than I expected. I was listening to a bass line and it was hard to describe it. Not heavy but solid on full and it is like flowing down a river of bass, it flows with the music. The sound is very open and deep. Different from the other AMPs so a nice variety. Portable tube, cool.
I completely agree on the bass. It's most impressive. The best I've yet heard from any of these AMP modules.