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Open-back over-ear planar magnetic headphones with Bluetooth 5.0 module attached

HiFiMAN

HiFiMAN Deva-Pro Over-Ear Planar Magnetic Headphone Bluetooth 5.0

SKU CH-7ZKB-2WX3W

Open-back planar magnetic headphones with a supernano diaphragm and Stealth Magnets, Bluetooth 5.0 and wired 3.5 mm options, plus a Himalaya R2R DAC module

  • TypeHeadphone
  • Stealth Magnets reduce distortion for pure sonic output
  • NsD diaphragm 80% thinner delivers fast response and detailed imaging
  • Himalaya R2R DAC enables high sampling rates with low energy consumption
  • Bluetooth 5.0 wireless plus wired 3.5 mm input options
  • Open-back planar magnetic design covers 20Hz-20kHz at 18 ohms impedance

What the Deva‑Pro Is and Who It Serves

The HiFiMAN Deva‑Pro is an open‑back, over‑ear planar magnetic headphone that pairs a lightweight NsD diaphragm with Bluetooth 5.0 wireless freedom. A built‑in HIMALAYA R2R DAC handles high‑resolution decoding, while the 18 Ω impedance keeps the load easy for portable sources. It targets listeners who want detailed, full‑range sound without being tethered to a desk.

How It Fits a Build and What It Frees

The included Bluemini R2R module plugs into the left‑socket 3.5 mm jack, letting you switch instantly between wireless streaming and a wired connection. No separate amplifier is required thanks to the low impedance and efficient magnet design. The open‑back architecture vents sound naturally, so you do not need a closed‑back seal or extra isolation hardware.

What It Replaces and When the Jump Pays Off

Moving up from conventional dynamic headphones, the Stealth Magnet topology and 80 % thinner NsD diaphragm cut wave diffraction and deliver faster transient response. The upgrade makes sense when you want planar clarity and wireless convenience in one package, but it does not suit buyers who need active noise cancellation, a closed‑back design for noisy environments, or a dedicated high‑power desktop amplifier.

Highlights

  • Stealth Magnets reduce distortion for pure sonic output
  • NsD diaphragm 80% thinner delivers fast response and detailed imaging
  • Himalaya R2R DAC enables high sampling rates with low energy consumption
  • Bluetooth 5.0 wireless plus wired 3.5 mm input options
  • Open-back planar magnetic design covers 20Hz-20kHz at 18 ohms impedance

Specifications

TypeHeadphone

Questions about this item

How does the 18 ohm impedance affect amplifier choice for sustained listening?

The 18 ohm impedance allows the headphone to be driven easily by portable sources or the included Bluemini R2R module without a dedicated desktop amplifier.

Does the open-back design with Stealth Magnets increase heat or noise during all-day use?

The open-back design allows air to circulate freely, preventing heat build-up, and the passive construction adds no fan or electronic noise during extended sessions.

Which cable or source must I already own to use the wired 3.5 mm balanced input?

You need a single-sided 3.5 mm balanced cable terminated for your source; the left socket accepts this connection directly.

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