Power from a UPnP renderer FireTV (but not DTS sound)

After FireTV's designed from home exclusively on streaming Internet content, but I also absolutely wanted also stream media from my home network, I've tried this app and it works fine. After installing FireTV is the playback source in this enabled programs on other devices displayed (I BubbleUPnP used on an Android smartphone for driving). Both music and high-resolution movies (1080p / 60fps) were rendered smoothly and there were no hangers or crashes.
The app does what it should and so far no problems, therefore clear recommendation.

Addendum:
Also works very well with Windows Media Player. If AirReceiver is turned on, you can in Windows Media Play 12 Click in the playlist on the "Play To" and then select AirReceiver and you can already remotely control playback on FireTV from the PC.

But:
Multichannel sound appears in streaming video to be down. All videos with DTS / Dolby Digital 5.1 sound FireTV remains silent. Two-channel sound, however, is not a problem. Since Plex also has such problems, the question arises whether it is up to FireTV and not the programs.