Reviewing the Shure SE425 In-Ear Monitors

  by Dustin MainNo Comments

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Easily one of my traveling staples, my headphones go everywhere with me.  Not only for filling my ears with musical enjoyment, but for blocking out the fatiguing sounds of a chicken bus ride that has gone on eight hours too long.

With a dire need for a new set, I opted for the Shure SE425 in-ear monitors. These are the second from the top of line in Shure’s series of sound isolating in-ear monitors (IEMs).  After 6 months of time on the road and in my ears, here’s the lowdown on my newest favourite piece of gear.

What Are In-Ear Monitors? (IEMs)

In-ear monitors such as the Shure SE425 actually fit inside of your ear canal.  This offers a couple of benefits.

First off, it’s much easier to direct the sound into your ear canal when they are positioned and pointed right in there.  Secondly, they block out most of the noise from the environment around you.  This is typically done with foam “tips” or “sleeves” that fit into and fill the ear canal like most ear plugs do.


What You Get With the Shure SE425: Fit, Accessories & Warranty


These IEMs are often worn with the cable rotating around the top and behind the ear. This keeps them in place, as the fit is very important to the sound quality of these types of earphones.

To customize the fit, Shure includes their “Premium Fit Kit.” This includes a few sets of sound isolating sleeves to match your preferred fit and a carrying case. Everyone has different ears, so you can find the sleeves that are most comfortable for you. The small black soft foam ‘olives’ are my favourite.

The black carrying case is perfect for travel. It’s solid and durable, fits your SE425 IEMs without cramping them, and slides easily into your bag and or the seat pocket on a long flight.

You’ll get a 2-year limited warranty with purchase. For the active traveler, it might be a little tricky to get service anywhere in the world given the small size and availability of their product line. That said, my experience dealing with a warranty claim a few years ago went smoothly.

They were happy to arrange a replacement set to Canada even though I was in Sweden, and I had purchased them in New Zealand. Nice one Shure.

Build Quality


The Shure SE 425 IEMs feel solid and sturdy enough, but just because they’re expensive, don’t think that you can smash them around.  Delicate parts make up the insides of these babies so I’s recommend you treat them with care.

The 3.5mm headphone jack is gold plated and angled.  It’s also moulded for ease of use, feels solid and has a good flexible connection to the cable to prevent wear and tear.  Going up the kevlar-reinforced cable, there is a splitter to the individual buds and a slidable holder to keep the cables together.

These cables are thinner as they near the buds themselves, and wrap around your ears for a custom fit that keep the buds in place and cables under control.


With my previous pairs of IEMs, this area of the cable that moulds around your ear was prone to breaking.  Shure has obviously learned from this, and these cables are not only better made, but replaceable (starting at about $30).  You can even buy a replacement set with a microphone and volume control built in.

Finally, where the cable meets the buds is a solid, gold-plated connector that rotates 360 degrees.  If you purchase a new cable, this is where you detach.  This connection feels very solid despite the ability to rotate, and has never disconnected on me by accident.

And Most Importantly: Sound Quality

One thing I sorely miss while traveling is listening to quality audio with a good set of speakers.  The difference between a decent set of headphones / earphones and a great set can be huge. Listening to your favourite songs and hearing things you never heard before is awesome.

The Shure SE425 IEMs sound great thanks to dual microdrivers (tweeter and woofer).  They have also been tuned for a “flatter” more accurate and balanced sound.  This is in contrast to many headphones these days that tend to be overly bass-heavy.

So in terms of sound quality, the Shure SE425 will give you that, in spades… but it’s a double edged sword.  Just like with any good piece of audio or video gear, it’s “garbage in, garbage out.”

That means if you’re listening to a high quality recording in a high quality file (FLAC or ALAC in particular), it’s going to sound amazing.  On the other hand, if you are listening to a low bitrate MP3, it won’t be nearly as good as it could, and perhaps worse than you’re used to.

It also matters where the sound is coming from.  My Galaxy Nexus smartphone is pretty poor for audio, and I can hear that noise at low volumes in particular.  My laptop on the other hand puts out better quality audio.

I’ve been testing these for nearly 6 months now, listening to a variety of music from solo piano (Chilly Gonzales) and jazz (Jukka Eskola), to electronic (Global Communication) and pop (Everything but the Girl).

This isn’t some annoying audiophile review so I’ll just leave it at this; everything sounds great, again, as long as the source has been good.

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The Verdict

For travel, the lightweight SE425 IEMs are great.  They’ll block out the sound of the crying kid in the seat behind you on the transatlantic flight, and the snoring guy beside you tenting in the Rocky mountains.

Add phenomenal sound quality to that great noise cancellation, and you have portable audio beauty that literally fits in your pocket.

There is no doubt that these are serious IEMs that come with a fairly serious price tag though.  I’d even venture to say they won’t impress most people out of the box due to its reference-quality audio.  Depending on your taste in music, and where you’re getting your music from, it will have a lot to do with how much you enjoy these earphones.

With the current trend of headphones being to turn the bass up to 11, some may prefer the sound of the cheaper Shure SE215’s that are tuned for a sound with a bit more bass.


  • Great sound quality
  • Excellent sound isolation
  • Replaceable cables
  • Carrying case is perfect for travel


  • High cost
  • Sound might not be what people expect


The Shure SE 425 earphones run $349, but you can pick them up cheaper on Amazon.

The Shure SE 215 earphones I mentioned as a potentially better pair for someone just wanting to try out a pair of IEMs retail for $99 (check prices on Amazon).

About the Author
Dustin Main

Dustin Main

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Dustin just can't get enough travel or technology, but when he's not directly feeding one of those insatiable habits, you can probably find him at some far away ice cream shop taking pictures of empty cups. That, or on top of a mountain somewhere shooting photos and finding adventures to share on his website "A Skinny Escape".

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