Audeze Euclid - Planar Magnetic IEMs Review

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Audeze Euclid - Planar Magnetic IEMs Review

Audeze is a brand that puts a lot of care and research into each of their headphones. Their efforts have led them to creating some of the most well-renowned over-ear headphones like the LCD-X. Audeze has also released a couple IEMs in the past, the LCDi3 and the LCDi4. Recently they’ve released a third, the Euclid. The Euclid runs for $1,299, putting it at at a midpoint between their previous in-ear models. With a prestigious brand name and a lot of stiff competition in its price range, the Euclid has a lot to measure up to. 

Audeze Euclid - Planar Magnetic IEMs Review 2

What’s in the Box

  • Audeze Euclid
  • Braided 3.5mm MMCX Cable
  • 1/4” adapter
  • Clip for Cable
  • 3 Sets Foam Ear Tips
  • 3 Sets Rubber Ear Tips
  • Cleaning Brush
  • Hardshell Carrying Case

 Audeze Euclid - Planar Magnetic IEMs Review 3

Look and Feel

The Euclid have a mirrored black backing with a shining gold ring surrounding their body, making these look mostly inconspicuous and lightly luxurious. Shape wise, they have a unique design. They’re definitely some of the heftier IEMs I’ve used, but they don’t feel uncomfortably heavy. Their larger size is a little confusing when first putting them in, so these may take a little bit of maneuvering to get the perfect fit, but you should be able to get there nonetheless. The only people I could see having trouble with the fit on these are those who have a history of being bothered by earbuds that are too large. If this has never been a problem for you, I wouldn’t be concerned.

Audeze Euclid - Planar Magnetic IEMs Review 3


The Euclid is a closed back IEM and uses a single 18mm planar magnetic driver with no crossover. This driver uses Audeze’s “Fazor waveguides,” which are meant to “eliminate the phasing and distortion typical of most closed-back dynamic in-ears.”

These have an impedance of 12 Ohms and a frequency response of 10Hz - 50kHz

Audeze Euclid - Planar Magnetic IEMs Review 3


For an IEM, these are definitely pushing the limits of width. These have a ton of depth and dimension going on that puts them on par with other earbuds and IEMs from companies like 64 Audio and Final Audio currently challenging what size soundstage is possible with in-ears. These do a great job separating things out, but do sprinkle in some blend to really marry things together. The Euclid seems to err on the side of cohesion over an intensely holographic character. They want the mix to be wide but still anchored to the soundstage, not levitating to the point of losing too much of its weight.


These have one of the strongest low end attacks I’ve heard on an earbud. To call these percussive is an understatement. They have a high-energy, life-like low end response that brings out extra movement from baselines and percussion with its ability to extenuate the impact, pluck, and thunder of various elements. These definitely boost the bass, giving us a good serving of sub range among this abundance of attack. This boost is tightly gripped to keep it from muddying things up, but it certainly packs a punch.


The Euclid definitely have an extended midrange, taking on somewhat of a bellcurve that meets in the middle of the low and high mids. This boost builds upon the punchy, impactful character created by the low end. There’s a nice “pop” to the midrange on these. The Euclid is able to give any elements hitting this area a hefty push forward, but not one too strong that it sharply surpasses the already-strong low end. There’s definitely a somewhat flatter tuning to the mids on these, as despite their boost, they don’t feel intensely groomed or filtered. Instead of trying to transform each song, these mostly leave the mid range up to each individual track’s timber in many ways.

The Euclid have a somewhat darkened high end, though by no means are the lights completely switched off. While the 8-16kHz range is not boosted to the point of a glossy, shiny sound, it is only a few decibels away from a more overt crispness. So if you can imagine a bright headphone with that tip-top layer of sheen cut down a peg, you’ve got the Euclid. There’s still a great snap to the high end on these, even with its warmer sound. The highs feel a bit colored too, some added saturation also assisting in smoothing out any sharper edges.


The Euclid excels at impact, punch, detail, and giving a spacious, energetic feel to music. These will definitely excite many seasoned sound-nerds, meeting and often exceeding the standards of high-quality sound that have been set in 2021. If you’re looking for a powerful, heavy hitting earbud from a reliable, experienced brand, check out the Euclid. You won’t be disappointed.

You can purchase the Audeze Euclid here

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