The UM pro 50 signature is the flagship of Westoneaudio UM line, it was introduced in the beginning of 2014 along with the flagships of the W series the W50 & W60, targeted to life performance musicians, all of the UM series is designed and hand crafted in Colorado springs in USA. This is a sound isolation earphone, with five balanced armature drivers in each side, one driver for bass , and two for each of the highs and mids, the UM pro 50 is able to produce a superb sound quality, in an unbelievable details, great depth specially with low frequencies.

The UM series have a different sound signature than the W series since it is made for musicians and stage performance, the lows are slightly more emphasised to give better detail with live music, and that makes them more forgiven for lower resolution audio tracks, and less clinical sounding, music just blends in with these little monsters, I cant say it the most accurate monitors I’ve tried but definitely one of the most enjoyable to listen to.

The fit is great and its as close as you will get to custom monitors, and they come with a variety of ear tips foam and silicon, in different sizes, and I would recommend you trying most of them to see which will suit your ears best because that will have a strong impact on sound, specially the bass.


  • Hand-crafted in the USA
  • 5-balanced armature drivers with a 3-way crossover
  • Incredible comfort for active lifestyles
  • Robust replaceable EPIC cable for stunning audio resolution
  • Westone True-Fit Technology
  • New Monitor Vault. Designed specifically for transporting high-end earphones and manufactured in Colorado of a high impact polymer

What’s In the Box?

  • UM pro 50 earphones
  • Epic braided audio Cable.
  • Various sizes ear tips Foam and Flux
  • Wax cleaning tool
  • Mini Monitor volt carry case

Product Details:

  • Type: Sound Isolation earphone (IEM)
  • Drivers Size:NA
  • Drivers Type: balanced armature drivers with a 3-way crossover
  • Frequency Response: 20-20000 Hz
  • Sensitivity: 115 dB SPL @ 1 mW
  • Impedance: NA Ω
  • Microphone sensitivity:NA
  • Maximum Input: NA
  • Cable Length: 132cm
  • Weight with cable: 12.7 g
  • Connecter: 3.5 mm with 90 degree jack
  • MSRP: 2699 AED
  • Warranty: 2 Years