The Grado PS500 is a compact, comfortable, monitoring headphone that delivers open, dynamic, virtually distortion free and strikingly lifelike musical performances to delight even the most demanding of music lovers. It is an outstanding addition to the Grado Professional Series of headphones. Like its larger sibling, the PS1000, the earpieces of the new PS500 boast a similar hybrid design. This consists of an inner sleeve of hand-crafted mahogany produced by using an intricate curing process. The attractive spark finish outer housing is machined from a bespoke non-resonant, very hard metal alloy which utilises a special processing and casting method to increase the porosity of the alloy. This combination of wood and metal insures that the earphone chamber has no ringing which might obscure detail or add colouration.