Good points. Maybe the Schiit DACs, being "upgradeable", can handle the newer encoding systems in the future. That said, considering the cost of the 660s, if I go that route I don't want to go for the high end DACs, seems like overkill but maybe I'm wrong. Would rather spend more money on a good...

Thanks, it does have a lower impedance so could be driven by mobile devices potentially but sounds like an upgrade over the 600/650 and I really liked it during the test. So if I go that route, I don't necessarily need a LOT of power but...on the dac/amp, what do you suggest?

Solid analysis. Sounds like the "instrumental" music might be better on the 800s. Now I was considering the 660s, should I be looking at the 600s instead? What's the difference there?

Test driven the 660s. Not sure I can test others nowadays given Covid etc.

Lots of everything. I would say 40% rock, 20% country, and a mix of jazz, pop, classical, post rock, Frank etc...kinda like musical ADHD

Thanks for the thoughts. Thinking I want to spend more on the cans than the dac/amp. So that said, if I go with the 800s, I'm probably looking at $3k all in.

Hello all, I am looking to setup a desktop DAC/amp to drive Sennheiser TBD (660S or break the bank 800s). Leaning towards Schiit (Jutenheim or Mjolnir), preferably American made in any event. Any suggestions?