Samsung S7 EDGE trying to use it as portable player..

[afico]

Hello guys,

i am trying to find suggestions in order to use this phone as player.
its headphone out really sucks (not enough drive for ATH M50X neither YAMAHA EPH-500)..but the Exynos dac quality is not so bad..
so my primary choice would be to use the headphone out going to my toppping nx 1 ..but technically double amplification doesn't seem a nice idea (isn't it?)
once upon a time there were some LOD cables in order to use a line out directly from the charging port of the phone..but don't find any
is there any portable amp that accepts usb input ?
otherwise i will need to evaluate an external dac solution..but i don't want to carry on my bag everyday a lot of things
i 've already a Fiio x3 - NX1 combo that is perfect...but again, don't want to carry all this stuff with me

 

[psikey]

Get a Dragonfly Black or Red ? Small/light, sounds great, no extra battery. Works perfectly with UAPP app (may have volume issues without UAPP app i.e. if using Spotify/Tidal/other music player).
 
I've only had the Red myself but that sounded nearly as good as my Chord Mojo.