Let's just say there's capacitor burn-in also, but I don't think that's the case with the Octave. Your case is pretty simple' to explain really. You're starting to notice the improvement - though subtle - over the DAC magic. Or it could be your ear is familiarizing itself to the Octave. That raises another point about comparing DAC at meet has no meaning; and that's why I always do my "dac battles" late at night + volume matched.
About the Octave, it's a very strange case of burning-in and you may notice. The Octave right out the box sounds "lively", or you can call it exciting/hot. However after like a week the sound starts to mellow out
Combined with the GS-1 and DT880 i think I'm getting pretty close to a wire with gain system.
Edited by Stitch - 3/31/13 at 4:39am