final A4000 Dynamic Driver IEM


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Newly designed driver 

The A4000 features a newly designed f-Core DU driver unit based on final’s proprietary sound evaluation method established during the development of their flagship, the A8000.

f-Core DU driver unit  

Speed is one of the most important components of diaphragm design. final increased the speed of the custom-built f-Core DU driver unit by using an ultra-thin CCAW voice coil. In addition, they used brass for the driver housing, which is resistant to magnetism and contributes to an overall better driver.

Ear hooks that eliminate cable touch noise

The A4000 uses an ergonomically designed ear hook that accommodates a vast range of ear shapes and sizes. The design also alleviates cable touch noise, the rustling sound that occurs when the cable rubs against your body.

Silicon carrying case 

Safely store the earphones and cable in the included carrying case, which is protected by a dome-shaped silicone lid.

Product highlights 

  • f-Core DU driver unit
  • Ear hooks that eliminate cable touch noise
  • Comfortable ergonomic chassis 
  • Secure 2-pin connector 
  • 5 pairs of original ear tips
  • Silicone carrying case


  • Housing: ABS
  • Driver: Dynamic driver
  • Connector: 2-pin
  • Cable: OFC
  • Sensitivity: 100dB
  • Impedance: 18Ω
  • Weight: 18g
  • Cord length: 1.2m

What’s included

  • final A4000 IEM
  • Silicone carrying case
  • Ear tips (5 pairs)
  • Ear hooks
  • USB charging cable

final A4000 Dynamic Driver IEM User Manual Download

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