Westone Mach 70


In sonic phrases the Mach 70 have a lot to advocate them, even when some extra low frequency wouldn’t go amiss. As objects, although, they don’t remotely dwell as much as the asking worth.


  • Sonic element and perception to spare
  • Light-weight and comfy design
  • Good passive noise-isolation


  • Want extra low-frequency presence
  • No unbalanced cable
  • Perceived worth will not be nice

  • DriversOptions seven balanced armatures per earbud

  • Frequency varyGoes as low as5Hz and as excessive as 22kHz

  • Ear-tips10 completely different pairs to suit completely different ear sizes


The idea of the on-stage in-ear monitor was Westone’s within the first place – so it’s not an enormous leap of creativeness to suppose the corporate is aware of precisely what it’s doing the place the buyer equal is worried. 

However with venerable manufacturers from each continent seeking to half you from a cushty 4 figures for his or her options, what have the Mach 70 obtained to assist them stand out?


The Westone Mach 70 wired in-ear screens are on sale now, and in the UK they’re yours for £1399. Of their native America they promote for $1399, whereas in Australia they’re extra like AU$2099. Remarkably, this type of pricing makes equal high-end IEMs from corporations as auspicious as Sennheiser and Shure seem like bargains… 


  • Mild and ergonomic earbuds
  • Mild and slim cable
  • Not a lot perceived worth

It’s fairly an achievement on Westone’s half to have discovered area for seven balanced armature drivers in earbuds so light-weight and compact. The earbuds are fastidiously formed, and as soon as in place utilizing the acquainted ‘twist/lock’ motion they keep comfy for hours at a time. Add in a cable that’s slender and equally gentle, and also you’ve a pair of wired IEMs which can be no burden by any means to put on.

Construct high quality and end is nice, too – which is the least you’re entitled to anticipate on the worth. The casing is easy, the seam the place its two sections be part of is nigh-on invisible… however in contrast to Audeze (as an illustration) or Sennheiser (particularly), Westone seems to have gone to no lengths in any respect to create a notion of the Mach 70 as a premium product. There’s no tactility right here, no visible drama – and that gray plate with the ‘Mach 70’ legend on it’s as plasticky because it seems. 

Westone Mach 70 micro case
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  • Seven balanced armatures per earbud
  • Linum Estron UltraBaX cable
  • Intensive choice of eartips

So sure, as already talked about: there aren’t any fewer than seven balanced armature drivers in every Mach 70 earbud. 4 deal with treble response, a pair extra deal with the midrange, and the one remaining takes care of the low frequencies.

Westone Mach 70 accessories
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The earbuds use T2 connectors to connect to 127cm of Linum Estron UltraBaX cable. This can be a silver-plated copper, double-twisted litz design that’s famend for its super-low microphonics and crosstalk. It’s very gentle at simply 6g, slimmer than appears potential, and is skin-friendly too.

Westone provides the Mach 70 in a sturdy Pelican hard-case, and in addition to the cable, the earbuds and, oddly, a carabiner clip, the field accommodates a tender carry-pouch and no fewer than ten pairs of eartips. Unofficially, they’re sized from ‘very small’ to ‘extraordinarily massive’ – and there are 5 pairs in silicone and 5 pairs in foam.

Westone Mach 70 litz cable
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There’s just one cable, although – and to double my disappointment at this truth, it’s terminated in an unbalanced 3.5mm jack. Fairly a couple of rivals are equipped with 2.5mm or 4.4mm balanced options along with a 3.5mm cable, and even each – however Westone doesn’t even provide a 6.3mm adapter.

Sound High quality

  • Open, eloquent, and constructive sound
  • Sky-high ranges of element and perception
  • Wanting low-end substance

Due to the way in which Westone provides the Mach 70, you’re restricted to utilizing sources (or headphone amps) with unbalanced outputs – and, except you’ve obtained a 6.3mm adapter helpful, sources with 3.5mm unbalanced outputs. And this guidelines out nearly each smartphone – though it appears unlikely anybody with this type of cash to spend on IEMs goes to pair them straight with a smartphone anyway.

Connected to an applicable supply and with a chunky 24-bit/96kHz file of PJ Harvey’s I Contained in the Outdated Yr Dying enjoying, the Mach 70 are instantly, and in some ways profoundly, spectacular. Actually, even earlier than they begin making a sound, the mix of sunshine weight, ergonomic good sense, and the assure of a pair of eartips that match very well, their passive noise isolation creates an incredible first impression.

As soon as up and working, the quantity of element they will extract and reveal in a recording is absolutely fairly startling. The place tone and texture are involved, in addition to the small harmonic variations evident in particular person devices, the Mach 70 are virtually fanatical within the consideration they pay. They establish even probably the most minor and/or transient occasions with out effort, and at all times give them applicable weighting.

Westone Mach 70 termination
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This expertise combines properly with an equal talent in soundstaging. These IEM create a remarkably open, spacious, and expansive soundstage, and organise a recording upon it with absolute authority. Each strand of a recording will get loads of elbowroom by which to specific itself – however on the similar, time, the Mach 70 are expert at making a unity and a singularity of efficiency from even a disparate or advanced recording. Their facility with timing, the flexibility to conjure the feeling of commonality from a recording, is at all times evident.

From the highest of the frequency vary to the underside, the Westone are easily built-in and usually properly balanced. The excessive frequency copy right here is crisp and vivid, however there’s loads of substance to go together with the treble shine that’s accessible. And within the midrange, the Mach 70 talk with actual freedom, giving vocalists of all types actual eloquence – regardless of in the event that they’re crooners, shouters, completed technicians or full chancers. 

Westone Mach 70 detached from cable
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There are related ranges of conviction, of positivity, element, and management, as the underside of the frequency vary as elsewhere. Assault of bass sounds is straight edged, which suggests rhythms are described confidently, and assault is managed with full conviction too. Momentum is appreciable, and there’s actual alacrity to the way in which the Mach 70 snap into and out of low frequency occurrences. 

What there isn’t, although, is quite a lot of physique or substance to the bass the Westone generate. There’s rapidity, sure, quite a lot of element concerning form and texture, and loads of all-around constancy – however there’s no two methods about it, the Mach 70 may very well be a punchier and extra sturdy pay attention.  

That’s to not say they’re wanting dynamic headroom, you perceive. The gap between the smaller, softer situations of a recording and its full-on assault overload is appreciable. It’s simply that there’s not as a lot low-frequency meat on the bones as is right.

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Do you have to purchase it?

You plan to hearken to your high-end supply of music for hours at a time: If there’s a extra comfy wired high-end IEM on the market, it hasn’t but made it so far as Trusted Evaluations.

You don’t personal a high-end supply of music: The Mach 70 aren’t precisely judgemental, however they solely start to sound like the cash’s-worth when paired with a succesful music participant.

Last Ideas

You spend this type of cash on IEMs firstly to get flawless sound high quality, after all – and whereas they’re not flawless, the Westone Mach 70 are deeply spectacular in lots of sonic departments. 

However I refuse to imagine that anybody laying this type of cash down doesn’t need to be made to be ok with their buy in different methods, too – on the very least you’re entitled to anticipate some mad drama a la Campfire Audio, or some difficult machining of premium supplies reminiscent of is offered by Sennheiser. There’s none of this with the Mach 70, not even a touch.

How we check

We check each set of headphones we overview completely over an prolonged time period. We use trade customary exams to check options correctly. We’ll at all times let you know what we discover. We by no means, ever, settle for cash to overview a product.

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Examined with actual world use


Can I take advantage of the Westone Mach 70 with sources which have balanced outputs?

The Mach 70 is barely equipped with an unbalanced connection, so the very best efficiency is had with unbalanced outputs/sources.




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