So I'm toying with the idea of a new amp to drive my Sennheiser 650's -- I have an old Audio-GD Compass right now. From what I can tell, an ODAC/O2 combination is probably pretty hard to beat with anything less than $500, and as a professional scientist I like things based on numbers.
However, looks matter! So, as a decidedly non-scientific poll, what's your favourite dac/amp setup (integrated or separate) in the $500 (or so) class? I like the look of the Stello D100/A100, and the Schiit Bifrost/Valhalla combination is fairly pretty. I'm also kind of attracted to the Little Dot D100/Mk.IVSE, and lots of people rave about that setup with the 650's. So, bring on the opinions!