B400 Quad Balanced Armature Earphones

Brainwavz is at it again, introducing the B400 Quad Balanced Armature Earphones for a respectable but high-end price of £144.43. The Brainwavz B400 features a 4 driver setup with separate drivers, each focused on specific ranges to produce true audiophile-grade sound reproduction. The majority of the components that make up the B400 are produced in USA or Europe including Knowles drivers, high purity OFC silver plated cabling and the T100 tips.

So what is different about the B400 earphones, well, the boot that fits in your ear is 3D printed for the ultimate fit in your lughole.  The B400 earphones are accompanied by two detachable MMCX cables, including a 2.5mm balanced cable, numerous silicone tips, and a stylish carrying case to protect the earphones.

The Brainwavz Quad Balanced Armature B400 earphones are available for £144.43 here



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




  • 3.5mm Standard MMCX Stereo Cable
  • 2.5mm Standard MMCX Balanced Cable
  • Earphone Hard case
  • 1 Set earphone cleaning kit
  • 6 sets of Silicone Ear Tips (S M L)
  • 1 set of Comply™ Foam Tips T-100 Red
  • 2 Earphone sanitary wipes
  • 1 Shirt Clip
  • Velcro Cable Tie
  • Instruction Manual & Warranty Card (24 month warranty