Quote: I wish i had DAC for my computer also. it is expansive for me :(

I wish I had a good soundcard. than i can check my headphones. :(   Dont be sorry. Thank you very much for your helping! It helps alot. :)

I have sennhieser px200 and i can hear the noises but sometimes i can't although i heard the noise from hfi580. in that cases, if i try to hear the noises again by using hfi580 again, the noises are gone.

many of the sources and recordings makes that noises. i mean it seems persistent. it makes me crazy :(

Quote:   first of all, i usually dont hear music or something in high volume. i try not to listen in high volume.   and...particular pitch range.. hmm.. im not sure but it seems bass.   i dont using eq settings and i am not running any other spacial programs at the same time  ...

My headphones are crackling sometimes. It is ultrasone hfi580 and it crackles playing music, movie or something using computer. I think some cracking noises are because of bad soundcard or bad recording condition. those noises comes from certain point of music and movie. So I can hear the noises...

Quote: Yes! I'm only hearing it during that kind of situation you've mentioned! Now I'm released. Thank you very much :) Asus Xonar DG is very reasonable. I should consider buying it. Thank you:)  By the way, using Digital to Analog Converter can be another solution, right? I'm planning...

Quote: Yeah, I'm using onborad. but I didn't hear that kind of sound. I used to hear weird sound when I used rubbishy computer. At that time I had heard noise when I'm opening folders, scrolling pages, and so on.  But do you mean most of noises is caused by  softwear and hardwear? not...

Quote: Thank you for the troubleshoots. I'll try it.  

Quote: I usually use mp3 format. and almost all of them is 320kbps cbr but I can't hear the noise when playing music.

Quote: I'm sorry i'm late. Actally, I don't know what is dedicated soundcard. I'm using onboard soundcard. 

First of all I'm sorry for my poor English skill. Last Friday, I bought an HFI 580. I'm satisfied with the headphones quality. But, I heard popping noise about two times when I was using it for computer. The last time I heard the sound was while I open an folder. I heard the sound just...