I have two pairs of k701s first pair I purchased new in 08. Not knowing about amp matching it was a surprise when my newly acquired Woo Audio 3 would not even make em fart.
Later purchased a WA 5 LE and it is nice combo to match the k 701s. After 300 hours of burn in they really responded nicely. Next is the posts about 500 hours plus to get them where they need to be for burn in!
So my question is are my headphones past the 500 hour mark of burn in? With the Q701s I'm going to run em for a month in a closet before putting them on.
Purchased a late model pair in 09 with the Right and Left "R" and "L" on the top of aluminum bar and AKG on the bottom. I can't tell any difference from early to late models and they sound exactly the same to me. Spent a year with the k701s as my main headphones.
Recently I purchased a Schiit Audio Solid State Asgard amp and love the topography and synergy together. I have to say all of our matching and mismatching of products comes to the conclusion of every small difference is huge. The Schiit gets rid of any of the plastic sound. I have had kind of a love hate relationship with them as at times they become my perfect headphones. I have had experiences where they sounded just like speakers to my ears. I'm truly happy that I have lived with them all these years and really love trying new amps with them. After listening to them I still feel they are music genre dependent no matter how much I want to amp them out of it, or trick my ears to somehow get used to rock on em.
That said so many styles of music do shine on them. One review I loved reading was Markl during the first release days when he was doing a direct comparison of the k701s to the $5000 Sony R-10s.
Posted March 2006.
I can even go mobile with the JDS Labs c421 Operational Amp. So with the right genres and amp they really are a flagship piece of audio heaven for low cost.
Edited by Redcarmoose - 7/6/14 at 4:50am