Global audio specialist Brainwavz, established in 2008 with a focus on offering high quality products at a competitive price, today announces the availability of its B400 Quad Balanced Armature Earphones in the UK. The B400 follow the launch of the B200 earphones in the UK in June 2017 which received fantastic acclaim, including 5 star reviews on Expert Reviews and Pocket-lint as well as 4.5 star reviews in iCreate and on Trusted Reviews. The B400 are available from for £144.43.

The Brainwavz B400 feature a 4 driver setup with separate drivers, each focused on specific ranges to produce true audiophile grade sound reproduction. The B400 ergonomic housing is hand assembled by Brainwavz’s own team in its in-house workshop, with every part scrutinised with quality control the top priority. 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.

Through meticulous tuning, customisation of drivers and crossover with 3D printed boots to further refine the sound, the B400 is able to produce every part of the sound spectrum accurately, with a wide sound stage. The B400 has been tuned to meet the needs of true audiophiles and is suitable for any genre of music.

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 B400 are available in eight different colours including Blue Knight, Berry Purple, Punk Pink, Crimson Red, Stay Frosty (Pictured above), Green Rage, Glossy Black and Cosmic Black. It is also possible to upgrade the cable when purchasing with Candy Cane, Frosty and Onyx available.



  • 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

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

By Jim O Brien/CEO

CEO and expert in transport and Mobile tech. A fan 20 years, mobile consultant, Nokia Mobile expert, Former Nokia/Microsoft VIP,Multiple forum tech supporter with worldwide top ranking,Working in the background on mobile technology, Weekly radio show, Featured on the RTE consumer show, Cavan TV and on TRT WORLD. Award winning Technology reviewer and blogger. Security and logisitcs Professional.