My Dad brought me up to audio store today. They had these handcrafted in germany open air headphones German Maestro GMP 240. I was trying to find review but hadnt any luck to find any. Here is some flat review + specs. http://www.head-fi.org/products/german-maestro-gmp-240-100-ohm-acoustically-open-headphones I was wondering how would these be compared to some other similar price headphones like: Audio Technica A900X/AD900X Beyerdynamic DT 880/770 AKG K550/K702 Sennheiser HD 600 looking forward to your replies thanks in advance. EDIT. German Maestro=MB Quart(MB Quart gone broke and German Maestro took them over). Also German Maestro/MB Quart 240 are very similar to MB Quart's earlier model QP45X. Only way they differ in is upgraded drivers in 240's.