{"product_id":"final-audio-dx4000cl-closed-back-dynamic-headphones","title":"Final Audio DX4000CL Closed-Back Dynamic Headphones","description":"\u003ch1\u003eFinal DX4000 CL Closed-Back Headphones\u003c\/h1\u003e\n\u003ch3\u003eA paper–carbon composite driver, 30 mm ear pads, and a silver-coated balanced cable\u003c\/h3\u003e\n\u003cp\u003eThe final DX4000 CL brings a closed-back design to the DX series, pairing a 40 mm dynamic driver with a resin housing and a lightweight, rigid glass-reinforced resin driver front plate. Its hybrid paper–carbon diaphragm is central to the design, blending carbon with Japanese paper to increase strength while retaining low mass and high internal damping. Final describes the acoustic balance as neutral, with controlled bass and an unusually open presentation for a closed-back headphone.\u003c\/p\u003e\n\u003ch4\u003eDriver and Enclosure Working Together\u003c\/h4\u003e\n\u003cp\u003eThe diaphragm uses a free-edge structure without grooves at its edge, designed to allow smooth movement and reduce distortion. Behind the driver, Final Audio's Rear Diffuser Array Structure uses ribs of different shapes and spacing to avoid parallel internal surfaces, diffuse reflected sound, and suppress unwanted enclosure resonance. These elements address the acoustic challenges of a sealed ear cup rather than relying on the driver alone.\u003c\/p\u003e\n\u003cp\u003eThe housing uses O-rings and precision screws, with adhesive use minimized for a serviceable construction. This approach allows the assembly to be opened for repair, an important consideration for headphones intended for long-term ownership. The hangers connecting the headband to the housings are made from lightweight, high-strength ultra-super duralumin.\u003c\/p\u003e\n\u003ch4\u003eReplaceable Pads and a Detachable Cable\u003c\/h4\u003e\n\u003cp\u003eThe 30 mm thick ear pads combine a synthetic-leather exterior with a memory-foam core. They are designed to provide a comfortable acoustic seal while maintaining distance between the ears and drivers—a key part of Final’s approach to creating a more open presentation. The pads are user-replaceable without tools.\u003c\/p\u003e\n\u003cp\u003eA detachable 2 m silver-coated cable terminates in a 4.4 mm balanced plug. The supplied 6.3 mm conversion adapter provides a connection to headphone equipment with a 6.3 mm output, so both connection types are covered without purchasing another cable.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e40 mm dynamic driver with a paper–carbon composite diaphragm\u003c\/li\u003e\n\u003cli\u003eFree-edge diaphragm structure and glass-reinforced resin driver front plate\u003c\/li\u003e\n\u003cli\u003eClosed-back, over-ear construction with Rear Diffuser Array Structure to control internal reflections and resonance\u003c\/li\u003e\n\u003cli\u003eResin housing assembled with O-rings and precision screws for serviceability\u003c\/li\u003e\n\u003cli\u003eLightweight, high-strength ultra-super duralumin hangers\u003c\/li\u003e\n\u003cli\u003eTool-free replaceable, 30 mm thick synthetic-leather and memory-foam ear pads\u003c\/li\u003e\n\u003cli\u003eDetachable silver-coated cable with a 4.4 mm balanced termination\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIncluded Accessories\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2 m detachable silver-coated cable with a 4.4 mm balanced plug\u003c\/li\u003e\n\u003cli\u003e4.4 mm-to-6.3 mm conversion adapter (sample)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eTransducer Type:\u003c\/b\u003e Dynamic, with a paper–carbon composite diaphragm\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOperating Principle:\u003c\/b\u003e Closed-back, over-ear\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eEar Cushions:\u003c\/b\u003e Synthetic leather with memory-foam cores; 30 mm thick; user-replaceable without tools\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHousing:\u003c\/b\u003e Resin, with a glass-reinforced resin driver front plate\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCable:\u003c\/b\u003e Detachable silver-coated cable, 2 m\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTermination:\u003c\/b\u003e 4.4 mm 5-pole balanced source plug; dual 3.5 mm 2-pole headphone connectors; 6.3 mm conversion adapter included\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDriver Size:\u003c\/b\u003e 40 mm\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSensitivity:\u003c\/b\u003e 96 dB\/mW\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNominal Impedance (1 kHz):\u003c\/b\u003e 37 ohms\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWeight (Excluding Cable):\u003c\/b\u003e 0.83 lb. (0.375 kg)\u003c\/p\u003e","brand":"Final Audio","offers":[{"title":"Default Title","offer_id":54067274416312,"sku":"FI-DX4BDPL","price":999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1564\/1247\/files\/7R406845.jpg?v=1789578940","url":"https:\/\/upscaleaudio.com\/products\/final-audio-dx4000cl-closed-back-dynamic-headphones","provider":"Upscale Audio","version":"1.0","type":"link"}