If you hear differences, then it's due to different settings in the programs, e.g. you have some DSP enabled in RadioBOSS, or Gain slider is set to lower level etc.
Regarding the font issue, today an update will be released where we address it (you'll need to go to Settings->View->Style and select the style again to fix fonts).
Regarding the font issue, today an update will be released where we address it (you'll need to go to Settings->View->Style and select the style again to fix fonts).