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Brainwavz B400 Earphones Review

Rating: 8.0.

While there are seemingly endless options of cheap earphones in the sub-£30 sector, what can you get if you are looking to spend a bit more? The Brainwavz B400 might be something to consider, with four drivers per earphone and a price of just under £170. That puts the B400 in direct competition with 1MORE's Quad Driver IEM – which, as the name suggests, also boast 4 drivers and now cost just under £130.

While the inclusion of four balanced armatures per earphone is definitely the headline-grabbing feature of the Brainwavz B400, there's plenty of other aspects to the earphones as well – including the 3D printed driver housings, a pair of detachable MMCX cables that come in the box, and a total of 7 pairs of ear tips that are also included. Currently priced at £169.50, are these worth buying?


  • 4 Balanced Armature Drivers
  • 3D Printed Housing
  • Ergonomic Design
  • MMCX Cables


  • MMCX 3.5mm cable with In-Line Microphone and Remote
  • MMCX 3.5mm Cable
  • Earphone Hard case
  • 6x Sets of Silicone Ear Tips (S M L)
  • Set of Comply™ Foam Tips T-100
  • Shirt Clip
  • Velcro Cable Tie
  • Instruction Manual & Warranty Card (24 month warranty)


  • Drivers: Quad Balanced Armature
  • Rated Impedance: 30Ω
  • Frequency Range: 10 Hz – 40 kHz
  • Sensitivity: 115dB
  • Cable: Detachable
  • Cable Connector: MMCX
  • Plug: 3.5 mm, Gold plated

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