Jan 11, 2019

Would a Fiio Q1 Mk2 drive the Sennheiser hd 6XX?

I’m not sure how high impedance the fiio could drive.

The Sennheiser HD 6XX, despite its high impedance, is actually not terrible even straight out of a phone; you'll miss out on clarity and bass control though (among some degradation in other ways). That being said, the Fiio Q1 would be a large improvement, but definitely isn't going to be ideal. The HD 6XX has an impedance swing which goes up to about 500 ohms, meaning a powerful outside source is needed to really get the best of these headphones. TL;DR, if you want to use the HD 6XX portably then the Fiio is not a bad choice.