thanks a lot James for prompt answer
i went right away to purchase many studio masters from a small but great french company QOBUZ which enables purchasing but also streaming of FLAC files even with iPhone !!
Back from my office I connected my X3 to my car stereo and YOOOOO what a sound even with ALAC files
i'am now dreaming about a bluetooth transmettor to avoid any cable when driving
I guess I am one of the first users of X3 in PARIS France but this product is so good in sound treatment and handling is .......quite far from the Apple IOS but i will learn
thanks to you i saved 500 euros compared to ASTELL &Kern players !!!
so far the bluetooth technical can solve the sound quality issues, anyway, hope our X3 can help you enjoy the music and forget the gears.