Which is pre-amp mode? Variable or fixed?

Using Ouput button?   HP = HP Variable = ? Fixed = ?

  iii. 2.1 setup: Computer (usb) --> X7 (passive speaker out) --> speaker                                                                                             ...> X7 (c/sub out) --> active    Is option 3 works? Or how's to get X7 works with passive speaker + active sub?   Key...

Is following setup works with X7?   i. 2.0 setup: Computer (usb) --> (usb_in) Audio-gd NBF11 (DAC RAC output) --> (line in) X7 (passive speaker out) --> speaker   ii. 2.1 setup: Computer (usb) --> (usb_in) Audio-gd NBF11 (DAC RAC output) --> (line in) X7 (passive speaker out) --> speaker  ...

Just noticed new 2014 driver / firmware released. Done it just in couple minutes and work great!   Audio-gd 11.32 in Win 8.1 > Download the firmward and driver   http://www.audio-gd.com/USB32firmware2014.rar   http://www.audio-gd.com/USB32%20driver%202014.rar > Uninstall old V2 driver >...