You know one thing I love about the O2 on my setup?
I can go from a recording with the HD-650 and it sounds really warm and full sounding and the next track is ultra thin, metallic and too trebly (sounding like an AD700 due to recording). Like there is no bass and this is the HD-650! Other tracks give you bloated bass, but again it's IN the recording and not due to my HD-650 (confirmed this many times).
I got similar results on the T90 and on my modded Q701. You really feel like you're hearing what exactly is on the recording. Same deal on my Micro Amp.
Well..I guess i'm listening to a 128kbps Jpop recording..how'd that get in there. On some DACs you can't even hear Itunes samples as being bad.
Some amps will not give you this kind of result...I'm guessing it's a combination of my DAC and Amp. Actually, probably more like the DAC without the AMP screwing with things.
Right now I don't have an ODAC but am using the Headroom Micro DAC (CS4398). It's very revealing to my ears and even more so than the Modi.
It's amazing how with this setup now there is such a massive variation in how each recording sounds..and this is on the HD-650!!
BTW someone mentioned the iFi iCAN earlier. I'm getting to try one tomorrow! Can't wait.