With the "iControlAV5" app on my smartphone HTC One M8's my amp control possibilities are impressive, very well made and the design is very beautiful. Do not forget to first connect it to a PC first and foremost, to bring him the wifi (internal wireless connection from home) via a browser. If that does not work, try another browser. Then via the application installed, refresh the amp up to find vsx ... then access the functions. It's incredibly Great, I'm too happy, no need for a mixer or another to control the sound.