Maybe there is a heat issue.
I already mentioned it get pretty hot while streaming, well it get's also hot when its in the pants in normal music listening conditions. This is normal more or less I guess. But the device is also really hot in switched on no playing anything, that's not normal I think. The AK240 was also hot when streaming music or playing in a bag, but not just switched on and the WM1A wasn't hot at all.
Some other owners out there experiences something similar?
Yes, my new SR15 is also get heat up very hot. I can feel it through my pant's pocket. It will get hotter when you are streaming.
I exchanged for a new unit. Same exact problems. Requesting vendor to contact AK for explainations. Not sure if it is a manufacturing issue.
By the way, the customer and technical services at Crutchfield are very helpfull and accomodating. Further posting as soon as I heard something back from Crutchfield/AK. Otherwise, love the design, UI, and sounding. The WIFI is dropping from time to time though.