Westone B50 IEM

Westone B50 IEM

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5 requests
2 Sold
Product Description
Adding extra articulation to the frequency spectrum, the B50 uses Westone’s largest low-end balanced armature in conjunction with two balanced armatures for the mids and highs respectively. For wired and wireless listening, both IEMs come with a silver-plated copper MMCX cable and Westone’s IPX4 water-resistant, aptX-compatible Bluetooth cable Read More



  • Westone
  • Drivers: (1) Large low-end balanced armature, (2) mid-range balanced armatures, (2) high-end balanced armatures
  • Sensitivity: 118 dB SPL (1 mW)
  • Frequency response: 10 Hz – 20 kHz
  • Impedance: 35 ohms (1 kHz)
  • Passive noise attenuation: 25 dB
  • Cable (wired): Braided, silver-plated copper cable
  • Connector: MMCX
  • Termination: 3.5 mm
  • Cable (wireless): IPX-4 water-resistant Bluetooth headband
  • Connector: MMCX
  • Termination: Bluetooth
  • Bluetooth codecs supported: aptX
  • Bluetooth range: 32.8 ft (10 m)
  • Battery life (wireless): 8 hours


  • Braided, silver-plated copper MMCX cable
  • Westone Bluetooth headband cable
  • (5) pairs of patented Westone Ergonomic Eartips 
  • (5) pairs of patented Westone Ergonomic Eartip Technology foam eartips
  • Exchangeable metal faceplates 
  • Zippered carrying case
  • Manufacturer’s 2-year limited warranty


Estimated ship date is Oct 21, 2021 PT.

Payment will be collected at checkout. Cancellations are accepted up to 2 hours after checkout, after which all sales final.