Originally Posted by HappyFunKid
Last week i purchased a set of these headphones from a reputable and authorized eBay seller:
Today I received them. I notice that the packaging box does NOT have a seal, you know the see-through tape that normal is used to seal these packages. Anyway i extracted the headphones and after plugging them into my Asus Xonar STX sound card, These headphones sound AWWWFFULLLL. I put on some bass heavy music and the bass just makes little popping and flapping sounds.
The headphones are 600Ohm version and my sound card supports it. I've never heard a blown head set before but I'm pretty sure this is what they would sound like. Maybe these headphones need to be burned in?
Seal is broken, so chances are the headphone have been out of the box, so you might have been sent headphone that where returned before and sold to you as new.
In the Xonar Audio Center, just to the right of the Analog Out section, there is a little square, with what looks like a hammer on it,
it is the HP Advanced Setting, click on it, in the HP advanced setting, you want to set it to "Extra high Gain +18 300~600 Ohm".
Did you disable your on-board audio in the BIOS? when you installed the STX?
Might also try the third party "Unified Xonar Drivers", just in case you have a bad driver install.
When trying to play music audio, In the Xonar Audio Center is the Audio Channel set to 2-channel?