So I tried to replace the headphone jack, and the right phone still didn't work. I opened up the cup, and everything seemed fine. Is it possible that the phone is damaged?

http://www.ebay.com/itm/UNTESTED-AS-IS-AUDIO-TECHNICA-ATH-M50-PROFESSIONAL-STUDIO-MONITOR-HEADPHONES-/360657704048?_trksid=p2047675.l2557&ssPageName=STRK%3AMEWNX%3AIT&nma=true&si=3SGeoG3bP2yutvwACZOZp3SMmHQ%253D&orig_cvip=true&rt=nc I think I bidded a little bit too much for them. My plan is...

I personally don't like them. They sound too grainy and I can't really enjoy them at all. They fit great in my ears, I'll give them that. I bought them used so I wouldn't have to wait too long to burn them in. So far, I've had them burning in for 20 hours and haven't felt anything different in...

Has anyone noticed any difference after burning them in? I've had them for 5 months and use them very frequently. Even tried to burn them in for 50 hours. I can't tell a difference. I do love the headphones, but I am just wondering if anyone has seen a significant difference in sound quality...