KennySSuperflux: Date first available at Amazon.com April 23, 2009
AKG: Date first available at Amazon.com August 27, 2015
Actually I think the Superflux is based on the K240 from 2001, so I guess.
The Superflux does have good reviews though. It's not low quality, they're both the spiritual successors to the K240, and it's strange how their bodies look exactly the same except for the badge and color, even though it's 2 different companies and they're 6 years apart.
SenorPlatanoJust got the 681 and I was like meh.. Not great, I wonder how these compare sound quality wise.. I could consider selling the 681s if these are better.
SenorPlatanoI agree with The rapist Garfield: anyone who said "best headphones under $400" has never tried any other headphones that were over $100 dollars.
http://www.amazon.com/Superlux-681-Dynamic-Semi-Open-Headphones/dp/B002GHIPYI Which costs $36 less and has a $90 lower MSRP.