The Fostex TH-900 is the first high-end audiophile headphone from Fostex. They feature a newly designed driver unit with a 1.5 tesla (15, 000 gauss) magnetic circuit & bio-dynamic 50mm diaphragm, a traditional finely crafted Japanese lacquered " Urushi" finish & selected 7N OFC cable. All this comes together to achieve the sonic goal of a wider stereo field, high resolution & transparent sound reproduction. Not to mention stunning looks.