Hello, I have an ASUS laptop integrated into my Bedroom Theater and 2.1 sound system. Currently I have an Audioquest Dragonfly DAC plugged into the USB 2.0 port from there the 1 stereo output of the Dragonfly heads over to a spliter after that one end goes to an amp for the main speakers and the other goes to a wireless transmitter for the subwoofer and all the filtering gets done at the sub Via a low pass filter @ 60Hz


I want to get rid of the headphone splitter and use the factory (unused) output for the subwoofer (if Possible)
also I do want to bypass the sub's built in low pass filter for something in the PC itself

Laptop info
ASUS K55a
8GB Ram
750GB HDD
Audioquest Dragonfly. (Stereo)
Realtek "HD" audio (stereo)