Dear Herr Heinz, That not compliments - just naked truth. Pity, that AKG lost that innovative spirit - diffuse field, AKG340, etc. AKG K1000 - great part of history of headphones (one day I will get good copy to my collection). My opinion - Mysphere most innovative headphones of 21 century. All other manufacturers just playing with things invented long ago and benefiting from materials. For example - Focal Utopia - construction of driver derived from Beyerdynamic 48 (ring magnet) with new beryllium diaphragm. Your new driver.... just finished reading available..... Speechless. By the way you should apply to book of Guinness for record breaking driver realise of 4mm. IMPRESSIVE. Not compliments - just facts Best place for autograph - headband, I think. Thank you for your time. Sincerely yours, Armandas Edited. Sorry, made mistake in numbers - should be Beyerdynamic 48, not 58.