[gkw2577]

I am not sure how many people know this, but since tomorrow is the last day, for people who want to buy HD558, this is a great chance to just spend few more and get HD598. http://www.frys.com/product/7821729
 
If this isn't allowed please delete the thread. just I spent so much time to compare price and trying to find the lowest one finally found it. 
 
I hope it can help someone's wallet.
 
Also for my 1 day old HD598, can anyone explain how to "burn in" it? Just turn the volume to max for 72 hours for whatever song?

 

[KG Jag]

This is the thread for posting (and reading about) deals:
 
http://www.head-fi.org/t/678077/the-deals-thread-iii-read-the-first-post/1200#post_9960363
 
Don't max the volume on your cans unless you want to risk blowing them.  Just play music with a good range of frequencies at a medium high (listen-able) volume.  I like HD radio, but regular FM with a good signal works too.  Let them "bake" for three days to a week, checking them out along the way.  Of course you can use them during this time to see what, if any, changes have occurred.

 

[tomb]

JMHO, but you might try wearing them a lot more for "burn-in."  I think burn-in from exercising them electrically is immeasurable.  However, there are real physical changes that take place from wearing compared to out-of-the-box.  The headband gets flexed, head and ear pressures change, and the pads settle in.  These all have noticeable effects on sound.