Hi guys, newbie here. I just bought a x5 last week and it was my first time to use it today in my car via line-out then aux-in of my head unit. Although my primary purpose is to use it with my home tube amp. I like it's build quality and just love the dual micro sd card slot. Upon hooking it up with my cars head unit, the difference in music output with my iPod 5.5 gen is night and day. However, I agree that the UI needs some getting time to be used to it. After a few hours, I can safely say that I've gotten the hang of it, mostly. I also immediately upgraded it's FW to the latest and the process was as easy as opening my ref's door
![Headphone Smile :) :)](https://cdn.head-fi.org/e/headfi/smily_headphones1.gif)
. With that said, I have a few questions:
1. What is the difference if I use the headphone out and line out when I connect it to the cars head unit via aux-in?
2. Does the internal DAC process the sound whether I use headphone out or line out?
3. If I attach it to my cars head unit via USB, and it detects and plays the files on my cards, the x5's internal DAC doesn't function anymore right?
4. When attaching to my tube amp at home, should I use headphone connection or line out?
5. Does the equalizer work all the time, regardless if I use headphone, line out or coax?
6. How do I extend the life of its internal battery?
That's all for now, thanks.
Egzbuen