I don't know either. However, a series of calculated moves over the past month was made in order to simplify the process on my end. Some thoughtful consolidation. I went through and determined that there was really no viable need for me to hold onto some of the $50 to $150 headphone wonders that I had. While there were some "interesting" offerings in that price range, I found them to actually be a distraction, when looking at the big picture. To me, the big picture was achieving a sound that I could finally love, and one that I could be content with. The constant revolving door of buying, selling, buying more, selling more has been halted. I have decided on my "keepers" which will be the HE-4, the HE-5LE and the HD-600. Oh, and the HD-555 for when I sleep. The 4, 5LE and 600 should be able to round out my various needs for my appetite when it comes to listening.
With that being said, what could be worse on a weekend than realizing your pair of HE-5LE headphones arrived at FedEx early on Friday morning, with a scheduled delivery of Monday? To add fuel to the fire, I called FedEx to see if I simply couldn't change the delivery option to hold for pickup. Well, FedEx explained that the package was still in the larger shipping container (truck?) and would be there until it would then be unloaded, sorted and placed on trucks for Monday's delivery schedule. Yes. Having to suffer through 72 hours of a pair of headphones less than 20 miles away, but kept under the control of FedEx from an eager receiver who wants to get his ears and hands on them? But, I can remain contained. I have my HE-4 headphones, which I, myself, truly truly love. Since I listen to so many female vocalists, the HE-400 was just butchering my music. It was bad. Real bad. Then, the HE-4 came into my life. Freedom for my ears finally arrived! The ladies now sing to me with their loving voices and none of the sibilants can be heard. I have reached a great plateau here. A great moment indeed.
As to music, I've learned that Audiogon is going to be rolling out monthly access to high definition tracks so one can test their gear out to the best potential. Here is the link:
http://hub.audiogon.com/2013/02/22/wake-up-your-ears-with-audiogon/
Finally, last evening, my searching for female blues singers landed another catch. Bettye LaVette. Yes, she has a great voice - and even an album where she does covers of some of the famous British rock songs that we know and love from the likes of the Moody Blues, Pink Floyd and others. Now this, my friends, is where I enjoy my headphones - through listening to newly found artists who have some great, great talent. None of that Lady GaGa crap for me!!!