I used to connect the unbalanced 1/4" OUT of my HD500X into the line input of my M-Audio M-Track. With this configuration I was able to adjust the gain one the soundcard linearly, using the whole stroke of the knob.
Now I'm using the HD500X connected with the M-Track with the XLR balanced outputs and with this configuration the first 3/4 of the gain knob have no influence on the signal, only the last 1/4 daoes, and it's obviously very sensitive.
I don't know if it's a soundcard issue or if there are differences in POD signal using balanced vs unbalanced outputs. Can anyone help me? Thanks in advance