There are some songs that drive me crazy because they sound like crap on heaphones...like on speakers they sound orgasmic but on heaphones they sound distorted
Are some songs designed to sound horrible on headphones?
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Sometimes headphones can bring out imperfections in low quality recording.
What type of audio files do you use?
The particular file I have a problem with is 256k from a computer.
Plugged straight into the headphone jack, no DAC/amp
What is the make and model of the headphones and the motherboard?
Motherboard (N-Alvorix-RS880-uATX) http://h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay?javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken&javax.portlet.prp_ba847bafb2a2d782fcbb0710b053ce01=wsrp-navigationalState%3DdocId%253Demr_na-c02870583-17%257CdocLocale%253D%257CcalledBy%253D&javax.portlet.tpst=ba847bafb2a2d782fcbb0710b053ce01&sp4ts.oid=5080733&ac.admitted=1386035427902.876444892.492883150
The 24-Ohm Sony MDR-ZX300s are design to be driven off portable audio devices and your HP computer comes with low cost built in audio hardware, not the best for driving headphones.
Not surprised that your music does not sound it's best when played thru the headphones.
Get these two items and your music should improve
Gemini HSR-1000 closed headphones, $56.
Asus Xonar DG (PCI) sound card, $27