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Final unveils DX4000 CL closed-back headphones with Japanese washi paper composite diaphragms

The Final DX4000 CL closed-back headphones are designed to replicate a wide soundstage.
Final
The Final DX4000 CL closed-back headphones are designed to replicate a wide soundstage.
The Final DX4000 CL closed‑back headphones aim to recreate an open‑back soundstage using washi‑paper composite drivers, thick memory‑foam pads, and a low‑resonance structure. They are positioned as a high‑end option for audiophiles seeking a spacious listening experience without disturbing those nearby.
Launch Audio Accessory

Final has unveiled the DX4000 CL closed-back, over-ear headphones designed to replicate the spacious soundstage of an open-back model.

The company says it has achieved this by using extra-thick 30 mm (1.18 in.) memory foam ear pads along with a low-distortion driver and low-resonance structure. The driver utilizes diaphragms made of Japanese washi paper infused with carbon for lightweight rigidity. Behind the driver, a special sound diffuser with fine ribs cancels out reflections while reducing resonance, according to the company.

The headphones are designed to be field-serviced and can be easily taken apart to replace individual components. It comes with a 2 m (6.6 ft.) detachable cable with a 3.5 mm (1/8-inch) connector, and a 4.4 mm (1/4-inch) adapter is also included.

Readers can order the Final DX4000 CL headphones today for 128,000 yen (~$829) on the company's Japanese website, with deliveries starting on February 6, 2026. Readers can browse the company's other offerings in the Final store on Amazon US.

The Final DX4000 CL headphones use a rear cover behind the drivers with specially placed ribs to cancel out unwanted sound reflections.
Final
The Final DX4000 CL headphones use a rear cover behind the drivers with specially placed ribs to cancel out unwanted sound reflections.
The Final DX4000 CL headphones use Japanese washi paper diaphragms infused with carbon for rigidity.
Final
The Final DX4000 CL headphones use Japanese washi paper diaphragms infused with carbon for rigidity.

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2026 01 > Final unveils DX4000 CL closed-back headphones with Japanese washi paper composite diaphragms
David Chien, 2026-01-31 (Update: 2026-01-31)