questions about Innuos Pulse Mini streamer usage

Hi,

I am thinking about buying Innuos Pulse Mini streamer

That will be my first digital streamer

Would you please answer:

1) When I receive digital stream over ethernet port does all available outputs are active - can I use simultaneously coax out, toslink out, usb out, all connected to various dacs

2) How can I tune In to a specific stream to listen to Internet radio station

3) Is there a noticeable Improve In sound If you upgrade stock power adapter with LPS. If yes, what are you using with good effect.