Increase USB current output

[FraMoode]

Not obvious to me but maybe another member has some ideas.

If you are going to always output 100% volume then try changing MPD volume to Fixed (0dB). Also look at alsamixer and verify that a ALSA is outputting 0dB gain for the devices mixer control named PCM.

Code:

alsamixer -c

Bingo!!!! Thank you so much, indeed it was ALSA outputting not at MAX. Problem solved!!!
Please may I ask you another doubt. I have the volume control set to HARDWARE. Is it preferable to set to SOFTWARE? Any difference in sound performance between HARDWARE and SOFTWARE?
Thanks again