I got my SR15 yesterday!!! and....
I LOVE IT!!!!!!!!!!!!!!!!!!
first thing i noticed when i took it out of the box is that its super tiny and cute lol. smaller than my old FiiO X5III and a midget compared to my Samsung Note 9.
the corners are pointy, but nothing you would hurt yourself on. the lips covering the analogue volume knob are a bit sharp.. almost nicked some of my thumb skin but no biggie.
the screen is very bright even on 0 brightness (where i have it now).
screen is a good size but the keyboard to type in wifi pw or search words is very cramped :X its fine just.. cramped.
it charges quite fast but i havent had enough time to test my personal players battery drain. i will say that from leaving my home to getting to work it went from 100% to 94%.. not bad since my volume was around 70-75 playing 16/44.1 and 24/48 tracks.
sound:
so this is what ive gathered so far, keep in mind ive had it for a total of maybe... 6hrs so far.
the highs are a good amount, nothing crazy but not bad either. perfect imo.
the mids are great! i think this is this players strongest suit is the clarity and spacing of the mids. very nice. much much better than the FiiO or my samsung. that being said i've listened to my friends SE100 and its 30% better in every way haha but also 2x the price..
the lows are defined but not super detailed. better than any phone can give.
sub bass, i havent listened to enough songs to try this yet, however a song from Daftpunk(can't remember) really surprised me with the level of sub-bass.
Thermals:
so far it is getting warm, but nothing concerning, in fact it does heat a bit more than the fiio but im assuming this is burn in period and should not be an issue any longer in a few more days. i've been told by electrical engineers things like this usualy have a few hours of heating up for the caps/resistors and other things to form and expand/contract and shouldnt take more than a few hours. i'll give it a few days just to be safe.
weight:
its VERY VERY light, i had to double check i had it on my person in my jacket because its so light.
conclusion:
Astell & Kern, so far you've won another customer. if all goes well in the future, i'll be a strong supporter and continued customer of your products
i think i'll keep the SR15 until the next generation of players comes out for A&K (maybe in 2ish years from now who knows) and i'll get the next "mid-tier" since the SR15 is considered the "beginner-tier".
PS:
i've only had the chance to use my B&O H6(Gen2) but over the weekend i'll try other headphones.
also, i like how snappy and fast the software is. fiio was terribly slow and clunky