Thanks dweaver! I'm just an amateur thats been lurking for awhile and used your files on multiple headphones and IEMs. There is a very noticeable difference in sound after an initial 12 hour Burn-In on the sets of fresh headphones and IEMs I've purchased. Tried do a Burn-In on my old HD555, didn't change anything at all, but I wasn't expecting it to.
Here is my first Burn-in and how I did it.
Monster Copper Turbine Pros :
1. Brand new set of MTCP paired with e11 amp and clip+
1a.E11 set on low Gain and Setting 1 on the eq/bass switch
1b.Clip+ using FLAC files
2. Listened to a playlist with a few Classical, R&B, 80's new wave, rock and heavy metal.
Bass was a little loose/sloppy(sorry if those aren't the right terms)
Mids and Highs were very balanced and nice
3. Ran dweaver's Brown Noise oriented file and Balanced File for a 12 Hour loop on a little above average volume(ran it after work and while I was sleeping)
4. Didn't expect to much of a change, but was I in for a shock!
The bass was more punchy and tight, not to aggressive of a change(which I really liked, because I'm not to much of a basshead)
However what really impressed me, was the midrange, it absolutely changed, Midrange became very warm and Inviting. Felt like Lita Ford and Ozzy were in the room singing for me!
Didn't feel the highs changed at all, but they were already good to begin with.
5.Rinsed and repeated 12 hour cycles with 2-4hr hour breaks for the next 2 days
5a.Played music I would normal listen to for 3-4 hours to "settle the burn-in"
Final Result/Conclusion: I felt the MTCPs were great out of the box. Burn gave a more refined bass response, very warm and inviting mids, and still kept a very good balance between everything. I completely fell in love with my MTCPs!