The main feature of the Fostex T50RP MK4G headphones are the fourth generation planar magnetic drivers, which is why the MK4 is included in their name. The first generation of these drivers was released more than 50 years ago, and since then, this technology has been constantly improved. The latest version features an increased number of magnets, which optimized the shape of the magnetic field and a redesigned flat coil design to expand the vibration zone of the flat diaphragm.
Fourth generation RP driver
These headphones are equipped with a significantly upgraded RP driver with a flat diaphragm controlled by a full field, which was originally developed by Fostex. RP drivers have been used in various models and have been recognized by musicians and studio engineers worldwide as monitor headphones. The fourth generation RP headphones utilize the traditional RP driver and a new housing design that further enhances the sound of the flat diaphragm.
RP technology planar magnetic drive
First developed over 50 years ago and constantly improved over the years, RP technology planar magnetic drive is now presented in its fourth generation. To expand and equalize the vibration zone of the flat diaphragm, a new form of printed coil was used. In addition, the number of magnets connecting the membrane was significantly increased. Furthermore, the components of the magnetic circuit have been redesigned to optimize the distribution of the magnetic flux, suppress unwanted resonance, and achieve even better transient response.
Fourth generation driver
Fourth generation driver, developed using various technologies that have been perfected over the years, simultaneously provides increased sensitivity, smooth frequency response, and superior transient response. Thanks to precise and delicate reproduction of elements across the frequency spectrum, soundstage and localization have also been improved. The new driver is also more efficient, requiring less power from the headphone amplifier to achieve maximum performance.
Balanced connection
Both the left and right housings are equipped with connectors for connecting the included cable, so the cable can be connected from both the left and right sides, depending on the operating conditions. Additionally, due to the symmetrical placement of the left and right housings, differences in sound characteristics caused by variations in the internal construction of the side panels have been eliminated. The connector features a 4-pole 3.5mm diameter connector that supports balanced connections, enhancing ease of use and versatility. The cable uses high-quality OFC conductors.
Comfortable earpads
The new, thicker earpads have low elasticity and fit snugly around the ear, providing a comfortable fit that makes them suitable for extended listening sessions.
Optimized for gamers
Fine-tuning for quick response in the crucial mid-frequency range allows shooter gamers to hear opponents without delays and distortions typical of classic gaming headsets. The fourth generation RP flat diaphragm driver accurately reproduces instant sound contours with superior dynamic characteristics, offering the fastest response in gaming headset history.
Package includes:
- Headphones
- 2-meter cable
- 3.5mm - 6.3mm adapter
- Manual.



































































