Good stuff.. thanks for the info.. I almost never use the bass boost on the V3, too (or any fq-enhancing switches/features on my audio gear). Call me OCD, or whatever.. I prefer to hear the 'true voice' of my gear without enhancements (flaws and all). I've got an ODAC on order as well, so I'm looking forward to seeing how it pairs with the V3.
I'll have a comparison between the O2 & V3 in my review.. like I said, they're both fantastic amps & deliver serious value. There's certain things the O2 does better, there's certain things the V3 does better.. but on the whole, I prefer the V3. It's sounds more musical and dynamic to my ears.