Sony MDR-Z7 High-Resolution Audio Headphones. Sony's flagship headphones reproduce subtle high frequency sounds up to 100kHz – a first for headphone technology. With 70mm HD drivers featuring Liquid Crystal Polymer diaphragms, and a full metal design, you get the clarity you need to enjoy High-Resolution Audio – for music that takes you closer to a live performance. Discover true sound with all the emotion and energy of the original recording. A huge 70mm HD driver powers through your music, keeping every note precise, even at higher volume levels. Take your digital music collection to another level with High-Resolution Audio. By converting analogue music to digital at a higher rate than CD (24-bit/192kHz, rather than 16-bit/44.1kHz), High-Resolution Audio allows you to get closer to the original studio recording and enjoy your music just as the artist intended. With the Sony MDR-Z7 High-Resolution Audio Headphones you can really benefit from the greater level of detail. So buy this Sony MDR-Z7 High-Resolution Audio Headphones - with 70mm HD Drivers & Liquid Crystal Polymer Diaphragms Now £549.00.