Thanks!

Currently looking to upgrade my headphone, using Sennheiser Game one right now and looking to get either a HD660s or a Audeze Mobius. I'm a gamer, and love to listen to music. Already accustomed to the Sennheiser sound so that might be a factor to consider? Sound Stage is important to me...

Yes, but you need a compatible source for it

DSD64 can be played by both phones, DSD128 and 256 is supported natively on Snapdragon 835 used here, and i can assume it can do those too as it decodes DSD64 Natively

LDAC is a Bluetooth codec allow for 24bit/96kHz files be streamed to the device As far as I know, only Z5 and above of Xperia phones have it And Walkman Zx2,Zx100,A25,A30,wm1a/z

My bad then

Its heavily customized, but the underlying system on Z is android, sony listed it there. the boot up behavior is totally different on 1Z and 1A   1A is turned on out of the box, the default behavior on sony's os   but the 1Z Require user to manually turn it on, and on the first power on, the...

The 1Z runs android, its a default android behaviour to turn on the device once power is connected And it looks like sony didn't add any offline charging support, so it boots up normally