Closed-back headphones have always carried a reputation problem. They isolate you from the world and hit with the kind of low-end punch open designs can only dream of — but audiophiles have long grumbled about the trade-offs: pressure buildup, boxy resonance, that faintly claustrophobic sound. Japanese specialist Final reckons it has cracked the code with the DX10000 CL, and it’s charging accordingly.
The headline act is a 40mm True Diamond diaphragm dynamic driver. Diamond is prized in high-end audio for a very physical reason: it’s extraordinarily stiff and light, which lets a diaphragm move without flexing or ringing. In theory that translates to fast transients and clean detail even when the driver is being pushed hard — exactly the scenario where closed-backs tend to fall apart.
Final’s stated goal is to deliver the “impact and energy” of closed-back listening while sidestepping the issues that usually “limit the format.” It’s the company’s most lavish product to date, and the engineering reflects that ambition.
The circumaural closed-back housing is machined from a high-rigidity aluminium-magnesium alloy, a combination chosen to kill unwanted vibration and keep resonance out of the sound. That build comes at a cost in mass: the DX10000 CL tips the scales at 543g, which puts it firmly in the flagship-heavyweight camp. This is a headphone built for a listening chair, not a commute.
Cabling is handled generously, too. In the box you get two silver-coated cables:
- A 1.5m cable with a 4.4mm connection, ideal for balanced portable and desktop sources
- A 3m cable with an XLR connection, aimed squarely at full-size headphone amplifiers
That pairing signals Final’s intent clearly — this is a headphone designed to live at the end of a proper hi-fi chain rather than dangling off a phone.
Now for the part that will separate the merely curious from the serious buyers. The DX10000 CL was announced on July 10, 2026, and is now available to pre-order, with shipping expected by the end of July. The standard edition lands at $8499 / £7499. If you want bragging rights, the Limited Collector’s Edition — restricted to the first 150 units — runs to $8999 / £7999.
At that money, the DX10000 CL isn’t so much a headphone purchase as a statement about how much you trust a diamond diaphragm to justify its keep. Final is betting there are enough listeners out there who’ve always wanted closed-back slam without the compromises — and who won’t blink at an eight-and-a-half-grand asking price to get it.
