I have written a review in danish at the danish head-fi-forum, which is called Hoved-fi.dk, and I'll now do my best to translate it into english: I have on a few occasions heard of Superlux, and that their headphones, despite being low cost, aren't the worst one can buy. A few days ago, I had the opportunity to buy a pair of HD 668 B's for what equates to roughly 21.50$, including the cost of shipping and a pair of velour earpads. Naturally, before recieving the headphones, I had seen quite a few written and video reviews of the HD 668 B, but...