Pre-orders are now open for Final’s latest Flagship closed-back headphones with a true diamond diaphragm. The first 150 units are being released as a limited Collector’s Edition with a price tag of $8,999.

The new DX10000 CL headphones from one of Japan’s elite audio company are the brand’s most ambitious project to date. Built around Final’s newly developed 40mm True Diamond diaphragm dynamic driver, the DX10000 CL headphones have been created to deliver the isolation, impact and physical energy of closed-back listening, while also overcoming the resonance and coloration that can limit the closed-back designs.

The Limited Collector’s Edition of the DX10000 CL features gold-colored accents and is presented in a traditional Japanese paulownia wood box, with an original Shingen Pouch crafted from Tango Chirimen silk. The DX1000 CL headphones also ship with a bespoke CNC-machined aluminum headphone stand. The standard edition will feature silver-colored accents and will come with the same protective carrying case used across Final’s D Series headphones.

Final says its DX10000 CL headphones are designed for listeners who want a “private, immersive and physically engaging experience, with the clarity, tonal accuracy and resolution expected from a true flagship audiophile product.”

Closed-back headphones have always offered something special. By isolating the listener from outside noise and containing the acoustic energy around the ear, they can also create a sense of pressure, intimacy and impact that open-back designs are not able to fully replicate.

However, closed-back headphones are extremely difficult to get right at the reference level. Rear sound waves can reflect inside the housing, creating unwanted resonances, tonal coloration and the familiar “cupping effect” that can sometimes make music sound less natural.

With DX10000 CL, Final says it hasn’t tried to disguise those challenges through dramatic tuning. Instead, the headphones have been developed as a complete acoustic system, combining a new True Diamond diaphragm driver, high-rigidity airtight housing, controlled internal damping, carefully engineered earpads and a serviceable mechanical structure.

According to the brand, the result is a closed-back flagship design that sounds “powerful and immersive without losing the openness, clarity and natural tone expected from the highest level of personal audio.”

True Diamond Diaphragm Technology

At the heart of DX10000 CL are newly developed 40mm True Diamond diaphragm dynamic drivers. The center dome of the driver is manufactured using a chemical vapor deposition process, where diamond is grown as a crystalline layer before the substrate is removed, leaving just a self-supporting diamond dome.

Diamond offers exceptional rigidity, high sound velocity and strong internal damping. This enables the diaphragm to maintain accurate piston motion, reduce unwanted deformation and suppress residual vibration after the signal stops.

Final says that, for the listener, this supports faster transient response, lower distortion and a more faithful reproduction of the original recording. This level of control is particularly important in a closed-back headphone, where the driver has to perform under greater air pressure inside its sealed enclosure.

To unlock the full potential of the True Diamond diaphragm, Final developed a complete supporting driver system. The diamond dome has a steep profile with a cylindrical rib around its outer edge, helping achieve the rigidity necessary for ultra-low distortion without unnecessary moving mass.

A newly developed polyurethane surround supports the diamond dome while allowing it to move freely and accurately. The voice coil has also been redesigned, using a lightweight polyimide bobbin-integrated structure to improve rigidity and drive precision.

Final has also used a free-floating lead wire structure, preventing the lead wires from interfering with the surround and helping preserve stable piston motion. The driver system is supported by an N55 neodymium magnet, aluminum shorting ring and internal damping system, each designed to improve control, reduce distortion and absorb rear-wave reflections before they can return to the diaphragm and color the sound.

DX10000 CL uses a high-rigidity housing that is precision-machined from an aluminum-magnesium alloy using advanced 5-axis CNC machining. For a closed-back headphone, the housing is not just the outer structure; it’s part of the acoustic design. Rigidity and airtightness are critical because even small vibrations or minor air leaks can change the behavior of the enclosed air volume and affect the final sound.

Final has applied principles more commonly associated with high-end loudspeaker enclosure design by creating a housing that’s built for strength, stability and acoustic control. Inside the housing, unnecessary material is removed to reduce weight. The resulting cavities are filled with dedicated acoustic damping material to control unwanted internal reflections. This approach provides the DX10000 CL with the mechanical foundation necessary for a closed-back headphone that sounds clean, controlled, and consistent.

Many closed-back headphones rely on fully sealed earpads to maximize isolation. This can increase the low-frequency pressure inside the ear chamber, often leading designers to raise the treble to restore perceived balance. The result can be a more exaggerated sound. The DX10000 CL takes a more refined approach.

Using Ultrasuede, a premium synthetic suede with carefully controlled air permeability, Final has created earpads that manage the ear chamber more naturally while maintaining an effective acoustic seal.

The Ultrasuede covering is paired with a specially selected foam material, chosen to support both the intended acoustic response and long-term comfort. The aim is a sound that feels full, physical and engaging, while remaining smooth, balanced and natural.

Designed For The Long Term

DX10000 CL headphones have been created as a long-term flagship model, which is just as well considering the price. The headphones uses a 12-point through-bolt construction, with 12 screws clamping the housing assembly from the outer housing to the front plate. This creates a consistent clamping force across the structure and supports the airtightness required for stable acoustic performance.

Unlike adhesive-based assemblies, the screw-fastened design of the housings also allows them to be disassembled and reassembled for servicing when required. Worn components can be replaced and the headphones can be properly maintained over time. For a product at this level, that’s essential.

The DX10000 CL includes two Final original silver-coated cables co-developed with Junkosha, a specialist cable manufacturer known for high-performance materials and cable engineering. Both cables use silver-coated OFC conductors. The included 4.4mm / 1.5m cable uses ePTFE insulation, chosen for its low dielectric constant and ability to preserve signal integrity.

The 4-pin XLR / 3m cable has larger cross-sectional conductors to maintain low resistance over its extended length, with high-strength PFA insulation for durability and electrical performance. Two premium conversion adapters are also included: a 4-pin XLR female to 6.3mm male and a 4.4mm female to 6.3mm male. This gives DX10000 CL wide compatibility with high-end headphone amplifiers and audio systems.

Pricing and Availability:

The Final DX10000CL CE headphones are open for pre-orders from July 9 July 2026, with the first 150 units worldwide available as a limited Collector’s Edition priced at $8,999 / £7,999 / €8,999. The standard edition of the DX10000CL CE will be priced at $8,499 / £7,499 / €8,499.

  • Style: Circumaural closed back.
  • Housing: Aluminum-magnesium alloy
  • Drivers: 40mm True Diamond diaphragm dynamic driver.
  • Cable: 4-pin XLR / 3m silver-coated cable
  • Cable: 4.4mm / 1.5m silver-coated cable
  • Sensitivity: 92 dB/mW, 1 kHz
  • Impedance: 20Ω, 1 kHz
  • Weight: 543g.
  • Country of origin: Made in Japan