We recently had the pleasure to test out the new ADX5000 and these headphones are in a class of their own. Amazing soundstage and they will certainly change your perception on headphones. They are extremely light and comfortable and we can't wait for the stock to arrive in the country. These headphones are well worth the wait. Each housing is carefully hand assembled in Tokyo, Japan. The magnesium frame and arm results in a rigid, thin and lightweight construction. Each unit is individually identified by a laser etched serial number. Type = Open-air dynamic Driver Diameter = 58mm X2 Frequency Response = 5 – 50,000Hz Maximum Input Power = 1,000mW Sensitivity = 100dB/mW Impedance = 420 ohms Weight = 270g (without cable Cable = Detachable 3m cable, 6.3mm gold-plated stereo plug. A balanced cable (AT-B1XA/3.0m – can be bought separately for $499RRP) Connector = A2DC connectors Includes exclusive hard carrying case