Sennheiser HD 600 Avantgarde are audiophile-quality, open dynamic hi-fi/professional stereo headphones. The advanced diaphragm design eliminates standing waves in the diaphragm material. The HD 600 can be connected directly to hi-fi systems of the highest quality, in particular DAT, DVD, MD and CD players. These headphones are an ideal choice for the professional recording engineer recording classical music. Features -Sophisticated design, elegantly finished in black and grey -High-quality, open metal mesh earpiece covers for an extremely transparent sound -Computer-optimised magnet systems minimise harmonic and intermodulation distortion -Extremely lightweight aluminium voice coils ensure excellent transient response -Neodymium ferrous magnet systems for optimum sensitivity and a wide dynamic range -Exceptionally natural, spatial and accurate sound -Detachable OFC copper cable, Kevlar-reinforced, with very low handling noise -2-year guarantee Product Specifications Wearing style Headband Color steel blue Frequency response (headphones) 12 - 39000 Hz Sound pressure level (SPL) 97 dB at 1 mW THD, total harmonic distortion 0,1 % Contact pressure ca. 2,5 N Ear coupling circumaural Jack plug 3,5/6,3 mm stereo Cable length 3 m Transducer principle dynamic, open Nominal impedance 300 ohms Weight w/o cable 260 g