Originally Posted by iMusicLover
I am using Foobar2000 flac files, i use normal gain setting, high gain and extra high gain adds more volume nothing more, how i can disable onboard sound ? Azaria sound codec disable at bios. Evey sound are muddy, nothing great, except little bit more detail and lively sound compare to on-board sound.
In the STX control panel.
Audio Channel should be set to 2-channel for music audio
Simple rate, 44.1Khz & 48Khz should fine for music audio, I leave mine at 96Khz
Assuming Analog Out is set for "Headphone".
Guess S/PDPF should be unchecked.
It could be your motherboard on-board was decent at driving headphones
I believe headphone like the ATH-M50 do not change that much with amping anyway.
The STX Headphone amplifier has a 10-Ohm output impedance, it might give those headphones (M50& 225si) a slight "bloated" bass.
Test the headphones in a portable audio player, they can have a very low headphone output impedance, might improve the bass quality
As long as you've "disabled" on-board audio, in the BIOS, the on-board audio should not be able to function/work.
I'm guessing any audio improvement you hear for the audio quality is do to the STX's PCM1792A DAC chip.
Have you tried the headphones plugged into the Sony receiver?