Manufactured using state of the art High-Purity Oxygen-Free Copper wire the Japanese Furukawa PCUHD stand for Pure Copper ultra high drawability. By combining a molding process that uses no heat resistant materials with post-processing free from hot extrusion or rolling processes, the product can be mass-produced in a way that excludes inclusions and impurities. While the product is a 4N grade material (copper purity 99.99%), it possesses high malleability and drawability that allows processing up to superfine wires. Oxygen is one of the most common impurities in copper products. For this reason, no gas burners are used during the manufacturing processes and the insides of the equipment are filled with noble gases. About Meze Headphones Designer Antonio Meze started Meze Audio in 2009 with the goal of creating headphones that embodied his passion for music, and after an exhaustive design process, Meze launched their groundbreaking 99 Classics headphone in 2015. Meze Audio continues with their design-forward approach, recently releasing their first flagship-level headphone, the gorgeous Empyrean. Showing a mastery of many different techniques, materials, and sound technologies, the future of Meze audio is very bright, indeed.