Denon's AH-D2000 High-Performance Headphones offer two signature sound-enhancing technologies. First is the latest microfiber diaphragm technology. Microfiber's smaller size results in a denser diaphragmatic material which increases transmission rates for better sound and higher detail, affording maximum presence of acoustic sounds with low distortion. In addition, a special acoustic optimizer adjusts sound pressure balance on both sides of the diaphragm to deliver dynamic bass sound. The AH-D2000 includes a lightweight magnesium frame for maximum comfort during extended listening sessions, as well as aluminum connector covers, gold-plated connectors, and high-purity OFC cables.