I need help.

[Jonh_1]

Can somebody help me?
I do have 5.1 audio system in my room, and I do connect mp3 player or my phone via aux, and it does sound quieter compared when I connect my loptop via aux, so does anyone know, if I'll buy a heaphone amp, would it help, or it's not desing for 5.1 audio system.

 

[lakimens]

That is normal behaviour. It's the difference in the output capacity of the digital to analog converter. The laptop has a stronger one and the mp3 player has a weaker one.
I think a headphone amp would help here.

 

[americanaudiophile]

A headphone amp won't do anything for you.
Did you try turning up the volume of your phone?
If you can get the system loud enough by just turning the volume up there is no reason to do anything. If you can't then you would need something like this
http://www.htd.com/LGB-1