Soundsgoodtome
Headphoneus Supremus
Hopefully the Freya can help in the bright dept. I understand fully that tubes can be the make/break for the hd800
More like the HD800 is a bright headphone and the JOT does nothing to amend it. Nothing you can't fix with Good EQ if your determined to use them together though ~ some headphones and amps just don't go great together, but once you reach a high level of performance, they can be EQ'ed quite effectively. This is true for the entire high end spectrum of gear. People spending so much money/time/effort to synergize their gear, seriously need to read the headfi thread on how to eq your headphones.
Your in for a treat AverageGuyNC, I came from the O2/Dac combo and have been quite happy with the JOT. The 02's no joke, but I prefer the musicality of this combo, I mostly upgraded for practicality reasons, my O2 was the original version and those wire's going all over the place were un-managable, I also needed a pre-amp for my JBL LSR305's, and this combo is excellent as a one box solution, robust volume control, excellent pre-amp, balanced cables to my JBL's is nice too.. The audio improvements were just icing on the cake.