Audio+ and low volume [resolved]

I’m back with my audio+ card that is correctly connected and working now.
However, while I found the volume really low (I use my headphones) I checked the alsamixer volume. It’s already to the maximum, then I don’t understand why the volume isn’t more powerful.

Any idea?

Hello and welcome,

The Audio+ uses a line out level to be plugged to amplified speakers, this is not an headphone level.
If you want an headphone amplification you can use the ULTRA++.