Fostex T60RP 50th Anniversary Limited Edition Wooden Shell Planar Diaphragm Headphones

In terms of unit design, the Regular Phase (RP) used in headphones can be said to confirm the development of Fostex in headphones so far. The RP unit has been improved for three generations respectively. The reason is that it is expected to make the sound performance more linear through improvements and pursue high linearity of sound. The design of the performance RP unit is also different. In particular, the carbon material in the magnetic yoke is less than half of the previous one. This approach not only makes the magnetic flux of the unit more even, but also reduces the mutual interference between the magnets, thereby retaining high linearity. The sound is restored in the diaphragm design. Fostex uses a polyimide film that is lightweight and highly durable. This brings an excellent transient response to the earphones. At the same time, the design of the coil will also have a certain impact on the timbre of the earphones. In pursuit of highly linear sound performance, Fostex uses a zigzag coil structure on the diaphragm coil and arranges them in a balanced manner. The diaphragm using this structure can reduce unnecessary high-frequency response when the unit is operating and maintain the naturalness of the sound information.不必要的高頻響應， 保持聲音信息的自然度。