setting up edifier m60. 'signal path' question

[Admetos]

So rather tan 3.3mm analog from mobo to speakers I've just set them up with a USB-A 3.0 out, from the pc to USB-C in, on the speakers, disabled the motherboard EQ and just running a flat EQ in the edifier phone app... so I belive I've bypassed the motherboards DAC by doing that.

It sounds better, I guess the speakers have a better DAC than my mobo.

Computers are electrically very noisy devices. Even if a computer uses a high-quality DAC chip, the DAC built into the speakers can still sound better due to reduced noise / RFI.