12 July 2017

Westone UM Pro 10 Review

Cross-posted with the Unboxbear
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The UM Pro 10  features a proprietary, single-balanced armature driver.
Each unit is individually hand-crafted in Colorado Springs, USA. The UM Pro 10 is ideal for on-stage monitoring for any level of musician

Before reading a review (not only this reviews but others as well), is good to know that the opinion and experience is subjective based on the reviewer liking and preference. so it's good that you know the liking of the author cause it will affect the product review.


there's certainly a premium feeling to it, the dark grey box is sturdy and material of the box is smooth. I would say that Westone did a great job.

There's a thank you message and a quick insertion guide, which actually quite useful if this is your first time wearing behind the ear cable.

Included with Universal UM Pro Series are Westone’s patented STAR™ silicone tips, True-Fit™ foam tips, wax removal tool and mini-monitor vault.

The vault is good to protect your IEM, there's small valve to release the pressure in case you are going to a higher altitude such as in the airplane.

Build and Design

The patented STAR™ and True-Fit™ Tips come in multiple sizes and give a personalized fit ensuring the best comfort. This is a dilemma, I like the sound produced by the STAR but prefer the fitting of the true-Fit.

For the STAR, the sound it's more dynamic and the voice is clearer. If you like clarity, STAR will be your baby. It’s comfortable and no problem wearing them for hours. Sound isolation is okay for me even thought is not that great.

While for the True-Fit, you'll get more bass out of it. It does sound a little bit muffled. I find it that the ear piece is not dense enough. Sound isolation is better than the STAR tips.

For the earpiece itself, the build quality is excellent. The polymer feels durable and a clean finishing. I'm very happy with the build quality, doesn't feel like "cheap plastic" at all. The housing is pretty small so it fits nicely into my ear.

The cable is an MMCX twisted helix cable for durability and it’s replaceable. Westone regarded this as a high-flex, ultra-low resistance tensile wire, reinforced with a special aramid fiber, and braided for ultimate durability, acoustic transparency, and isolation from mechanical cable noise.

Instead of replacing the whole set, if your cable is having issue, you just need to replace the cable. It’s possible also to change it to become a MMCX wireless cable! take a look at this

the cable is a Y splitter 3.5mm gold plated L jack, I prefer a L jack compared to a straight jack. It does last longer in my experience.

While wearing the IEM (it's connected to my phone at my back pocket) i almost don't hear any microphonics (cable noise caused by the friction between the cable and your body / other things). Thanks to the high quality cable and the over the ears design.

Sound quality

Westone mentioned The UM Pro 10 is ideal for on-stage monitoring for any level of musician.

This is true, the single balanced armature delivers a analytical sound, kind of a flat sound signature gearing towards the vocal and treble. definitely lack of bass by nature (because it's a balanced amateur not dynamic driver), so if you are a bass head this drive is unsuitable for you.  it's understandable that this sounds a little bit boring at times because it's flat. Don’t blame Westone for this they clearly said that this series is for monitoring.

To get the best of an IEM, you need to have proper fit of the tip and a good seal. With a good seal UM Pro 10 delivers a fast and tight bass.

The soundstage is okay better than the other IEM at this price range, wider than Shure 215 but smaller than TDK-BA200

what's my final take?

It will give you a clear, detail and natural flat sound signature and could feel cold at times. the disadvantage is that you may feel that this IEM lack of bass, it has bass but it's too thin and the single BA is too limited to cover the bass.

I would recommend it for monitoring (the intended purpose) because normally musician and sound engineer need to hear the natural flat. for general consumer it will also work if you're listening to instrumental, jazz, blues, classic, vocal and non-bass genre.

As with other review, the beauty is in the ear of the beholder so if possible do try it yourself and make sure that you've a good seal during the test.

If stronger bass presence needed in this price range, I recommend to take a look at Shure 215.


  • Detailed sounds with visible soundstage
  • Great accessories (tips and the vault)
  • High quality build (cable and housing)
  • Replaceable cable (MMCX connection)


  • lack of bass 
  • could be a boring sound signature (you can change this by tweaking the EQ in your player / phone)

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