The T60RP 50th-anniversary edition, based on the T60RP, has a new RP sound profile tuned to precise specifications. It's made with durable African Padauk wood and produced in a Japanese factory, with meticulous assembly and acoustic adjustments. Housing made of African Padauk. The housing is made of African Padauk wood, prized for its rich reddish hue and excellent qualities. It is also known for being hard, dense, dimensionally stable, and having a beautiful surface, making it a preferred choice for crafting musical instruments like xylophones and guitars. When combined with the RP diaphragm, it provides an immersive listening experience with deep mid-low tones and extended clear high frequency. Two types of ear-pads. The package includes two types of ear-pads: synthetic leather and velour. You can switch them out based on your preference. These around-the-ear pads are designed for comfort, allowing enjoyable extended listening sessions. *The headphones come with synthetic leather ear-pads pre-installed when shipped. Fostex's traditional RP diaphragm. It has the RP (Regular Phase) planar diaphragm, which is made from a durable polyimide film with high heat resistance, etched with copper foil for improved performance. The driver unit, featuring a neodymium magnet, offers exceptional linearity across the entire frequency range, excellent transient response, and a high input resistance of up to 3,000mW. Detachable connectors. The cable is made of premium Oxygen-Free Copper (OFC) conductor material, ensuring sharp sound reproduction at all frequencies. The detachable connectors make it versatile in different environments. Using the optional balanced cables to connect the headphones to a balanced output player or headphone amplifier eliminates unwanted noise, leading to clearer sound quality and better separation between audio elements.