Looking to drive Hifiman HE 400i primarily but also Grado SR 80i, Beyerdynamic DT 1350s. Which of these would be the best? Currently have the fiio e09k but its high output impedance seems not ideal for my current cans. Also considering getting HD 6x0s down the line.   Cheers

I'm looking to upgrade my primary listening cans (Senn HD 558).   Budget is around $200 (new or used) but I am open to expanding that if advice says it's really worth it.   I tried to get in on the HD 6xx drop so I'm considering the HD 600/650 but am also looking at the Hifiman HE 400s.  ...

I have the Fiio e09k and am considering getting a pair of speakers. My question is whether I can run speakers with a built in amp or use passive speakers and how to hook each up to the E09k. Also, feel free to suggest speakers to consider. I am currently looking at the M Audio AV40s.   Any...

I currently own the Sennheiser HD 558 and am wondering how they would compare to the HD 580. I also own Beyerdynamic DT 880s (250ohm) so feel free to add those into the comparison. Any replies are appreciated