Final Co., Ltd. has announced the DX4000 CL, a closed-back, over-ear headphone designed to deliver a wide, open soundstage typically associated with open-back designs. The company will start accepting pre-orders in Japan on January 30, 2026, with sales beginning on February 6, 2026.

Closed-back headphones often struggle to sound open due to their sealed structure, which can reduce transparency and create a boxed-in listening feel. The DX4000 CL addresses this by using newly developed 30 mm thick low-resilience ear pads that increase the distance between the driver and the ear. This design choice helps reduce the sense of pressure and improves spatial presentation. Combined with a low-distortion driver and an internal structure designed to suppress unnecessary resonance, the headphones aim to deliver a sense of openness that feels closer to an open-back model.

The driver uses a composite diaphragm made from washi paper blended with carbon. Paper has long been used in audio diaphragms for its light weight and high internal damping, while the added carbon improves strength. To allow smoother diaphragm movement, final has adopted a free edge structure with no grooves along the edges. The front plate that secures the driver is made from a special glass-reinforced resin, which is both lightweight and rigid, helping to reduce distortion during playback.

Behind the driver, the DX4000 CL features Final’s proprietary Rear Diffuser Array Structure. This design uses fine ribs with different shapes and spacing to eliminate parallel surfaces inside the housing. By diffusing sound reflections, it suppresses unwanted internal resonance and helps maintain cleaner sound.

The headphones are designed for long-term use. Adhesive use is kept to a minimum, and the housing is assembled with O-rings and precision screws to allow repairs. The 30 mm thick ear pads are made from synthetic leather and memory foam, offering strong sealing and comfort. They can be replaced without tools. The hanger connecting the headband and housing is made from super duralumin, a material also used in aircraft.

The DX4000 CL includes the Final’s original silver-coated 2 m cable with a 4.4 mm plug, along with a 4.4 mm to 6.3 mm adapter. The textured paint finish helps resist fingerprints and sebum. Pricing is set at 128,000 yen, or about $829, with deliveries starting February 6, 2026.

For more daily updates, please visit our News Section.

Don’t miss a thing! Join our Telegram community for instant updates and grab our free daily newsletter for the best tech stories!

The post Final DX4000 CL Closed-Back Headphones Debuts With Washi Paper Carbon Diaphragm and Repairable Build appeared first on Gizmochina.