Kennerton Audio is a relatively unknown brand. But they had built this headphone with collaboration of Fischer Audio, famous Russian brand of many hand crafted phones. Kennerton is chosen to be the naming brand of FA's highest end products. Usage of bog wood is the thing that makes this headphone so special. Plus their requirement of the wood to be at least 2050 years old. Radiocarbon age test helps them target the woods. http://www.kennerton.com/magister.htm You can read its only review here As for me, I am quiet happy with this Magister. You feel and hear the quality. But do not expect too much rumble. Mid range, details and wide soundstage does the job here ps: ibasso dx90 is not enough for it to shine. I am using my Beresford Gatorized dac/amp to maximize its performance. ps2: Cables are interchangeable with 3rd party cables. But why should you give up the beauty of these 3m long fabric covered almost 1cm width cables? ps3: As dx90 is cannot drive these completely, who cares? You won't be using this portable. Will you?