@Theogenes, I can't imagine why balanced would have any impact on treble, and certainly not like you are describing. I can only assume that something else is behind that issue. I agree with your findings, the build is solid while unexciting, but frankly for me looks are not as important so that doesn't bother me much either. Sound is where I hang my hat and I'm a pretty big fan so far of the sound. Just tonight driving the 400i brought a smile to my face while listening to a awesome mix of Nu-Jazz from the Saint Germain des Pres cafe series (highly recommend this series by the way for content and quality of sound).
Yeah, I'm not sure either. The ASG-2 has always lacked a touch of treble sparkle and extension (compared to the ER-4PT, my reference for treble), but this is a pretty large deviation. I should be able to further track down the issue once my Null Audio balanced cables arrive, and I'm in the process of trying to pick up another IEM (with a 2-pin connector), so that should allow me to pretty confidently point towards the whatever source for this there is.
And I didn't originally intend on posting those impressions here, but only decided to on a whim shortly afterwards-- elsewise I would have made it more clear that I don't have any issues whatsoever with the looks and build (and actually appreciate the gentle slope around the volume knob), but that I just find them more functional than aesthetic. Personally, I would rather have a device that was not unattractive but also not unreasonably priced rather than one milled from aircraft aluminum (or something equally cool but unpractical). Opinions differ here, natch.
If this is what you mean, there is a brightness control slider and accessible from anywhere. Just swipe down the status bar.
Probably should have clarified here. Yep, I use the brightness control all the time; I just greatly prefer an auto-adjusting brightness that doesn't require manual adjustment. I've downloaded the Lux brightness app someone recommended earlier, but haven't really spent any time figuring out if it can somehow do this without a camera or light sensor yet (not holding my breath). Good call-out on this, I might've confused people with how I put that.
Day 2 on EQ'd audio, and thus far, I'm exceedingly impressed. Haven't listened to this much audio while on the go in a long time, maybe not ever, honestly. Great device, this DP-X1!