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Radius Acoustics

Radius Wn4 Advanced Dual Diaphragm High Resolution In-Ear Headphones - Demo

DEMO UNIT/HARDLY USED - Zipper on case broken but very usable

Radius Wn4 HP-TWF41 Advanced Dual Diaphragm High Resolution In-Ear Headphones

Fresh from Japanese company Radius Acoustics comes the Wn4 HP-TWF41 Advanced Dual Diaphragm Matrix High Resolution In-Ear Headphones with detachable MMCX cable.  The Wn4 is designed with two individual drivers; one exclusively for high frequencies with the second driver (coated with beryllium) for midrange and lower frequency reproduction.  The advanced dual driver technology creates excellent bass response that has great punch and impact, but is also well controlled.  Mid and upper frequencies are precise, detailed, clean, and crisp for amazing musical presentation.  The Radius Wn4 has better extension and overall improved performance over the Wn3 model. 

The fit of the Wn4 is not as intrusive as other in-ear headphones, yet stay secure and comfortable while inserted into the ear canal.  The Radius Wn4 has a spacious soundstage and superb instrument separation.  We enjoyed these at Rocky Mountain Audio Fest in October 2016, so give these a try for yourself!  


  • Driver Type: Dynamic and Piezo
  • Driver Size: Dynamic-13mm, Piezo-12mm
  • Impedance: 32 ohms
  • Sensitivity: 108dB +/-3dB (@1kHz/100mV input)
  • Frequency Response: 10Hz - 45kHz
  • Connector: 3.5mm (1/8" mini) gold plated
  • Cable Length: 120cm (47 in.) detachable
  • Weight: 17g (0.6oz) w/ cable
  • Warranty:
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