Refreshed 2019 Edition with changes on driver, headband, yoke and deco part Highly optimised magnet systems for minimum harmonic and intermodulation distortion Extremely lightweight aluminium voice coils ensure excellent transient response Detachable connecting cable made from highly conductive OFC copper, Gold-plated 6.35mm jack plug with adaptor lead to 3.5mm jack plug Sennheiser HD650 - 2019 Edition For fourteen years the Sennheiser HD650 headphones have been celebrated and enjoyed by listeners around the world and have acquired legendary status along the way. This 2019 Edition of this renowned audiophile headphone has undergone a refresh in design on headband, yoke and deco part. With the HD650 reference headphones, Sennheiser has followed the changes in the listening habits of music lovers and the way in which they experience sound. In spite of all purism and the highest demands made on the precise reproduction, a slight change in listening behaviour has made itself felt. Many music lovers now want to feel the sound more and analyse it less. The HD650 captivates your sense where you used to be a mere observer. Audiophiles listeners will experience truly unique natural sound when listening with the HD650. With sound this good, long concerts in the comfort of your home are a certainty, so the HD650 also sets standards in comfort and convenience. Sennheiser HD650 is a genuine masterpiece, which will satisfy even the most demanding listener. The Reference Class.