Battery percentage is misreported on mine, too, when charged using the ipad charger - or its perhaps not being fully charged. Also as mentioned before, the font size of the percentage could be larger.
Wish list items:
- Next folder or album play as an option.
- React to first button press - currently often two button presses are required, the first seems to "wake the x3 up" and then the desired action needs to be clicked again, for example I press volume up, first time only the display lights up, need to press it a second time to increase volume. This should not be the case, the volume should increase on the first button press.
- option to turn charging from usb off when used as a dac with portable devices
By the way, the Denon D600 sounds quite nice with the x3 and its current firmware.