I also got an answer re: a question I had about how the EQ works:
The EQ can be turn on/off globally not per band. EQ includes 2-band hi/low shelf + 3-band parametric. There are no presets.
So, that seems a bit limiting if you're going to be using multiple pairs of headphones/earphones. I would love to be able to have PEQ in a DAC/amp for my iSine 20, but (a) I'm not sure that 3 PEQ adjustments is enough and (b) Once I had the settings in place for the iSine, I wouldn't be able to use another pair of phones that require EQ (even a simple bass boost) without basically re-doing all the settings.