[Listening test] Yanyin Canon Pro Hybrid In-Ear Headphones

Product: Yanyin Canon Pro - Hybrid IEM Earphones
Manufacturer: Yanyin Technology Co. - China
Distributed by: Linsoul - China
Approximate price: €320
Reviewer: Lucio Cadeddu - TNT-Audio Italy
Reviewed: November 2025

Foreword

Fuzhou Yanyin Technology Co. Ltd. is a Chinese company that exclusively makes in-ear headphones in Fuzhou, China. It was founded in 2020 by a group of headphone enthusiasts. The Yanyin logo hides the letters R and D, identifying the company's mission, Research & Development. Their strong point is the use of multiple micro-transducers of different types. The catalogue is extensive but focused on the mid-high range, starting from 270 euros for the Canon headphones up to over 1000 euros for the Moonlight Ultra. These Canon Pro headphones I'm about to review cost around 320 euros. Distribution is entrusted to Linsoul, who kindly sent the earphones for testing.

A closer look

The Canon Pro are the natural evolution of the Canon II and are therefore a hybrid design that uses a traditional dynamic driver combined with six balanced armatures. A simple description of what a “balanced armature” transducer is can be found here on Wikipedia. The dynamic driver's diaphragm material has been upgraded from organic polymer (as in the Canon II) to liquid crystal polymer, and the design is 4-way instead of 3. The 3D-printed resin body and two micro slide switches used to modify the frequency response remain unchanged. These can only be moved with a supplied micro-accessory, as they are too small to be moved with your fingers. There are no instructions that explain what they're for, or what frequencies they operate on.
The included cable is very nice, made of high-quality monocrystalline copper, a 22AWG single-core construction with 140 precision-twisted strands in four groups, paired with beautiful alloy connectors (various sizes available).

Six pairs of ear tips are included to fit any ear canal. Finding the right fit takes some practice: the earbuds must fit snugly in the ear canal, otherwise there will be a noticeable degradation in sound quality.

Claimed tech specs

From the diagram above, you should understand how the sound changes depending on the position of the micro-switches: the first purple setting, the one with the two micro-switches in the lower position, is the most natural and balanced. The second, orange one, with one of the two switches moved up, is the balance that favours the mid-high range the most, while the last, the blue one, with the two switches moved up, is the one with the low frequencies more prominent, a tonal balance they call full-bodied. This was my favourite most of the time. I found the one with only one of the switches moved up too empty and bright. Let's just say that a brief explanation, perhaps a little clearer than this, should have been provided. An instruction manual, in English, with clear illustrations, is a must in this price range. We're not talking about €5 headphones on Aliexpress.

A cool “hybrid” musical canon

After struggling to find the perfect fit for the Canon Pro in my ear canals, I started listening. I'm not a fan of in-ear headphones, but the sound of these Canon Pros won me over. They're very sensitive and can sound really loud, even with the headphone output of a smartphone or a DAC dongle. Obviously, given their quality, it would be a better idea to use them with a proper high quality headphone amplifier, not because more power is needed, but because the playback quality clearly benefits. Good dongles like the iFi GO Link Max and the Fosi DS2 will also work just fine.

To be honest, I wasn't expecting much, and I was pleasantly surprised by the very dynamic, fast, controlled, and powerful sound. The bass frequencies, adjustable via the dedicated switches, are incredibly deep, impactful, and very fast, easily rivaling those of traditional over-ear dynamic headphones costing even more.

For example, I found the bass to be more “true” and engaging than that of the Fosi I5 planar headphones (soon to be reviewed) and the Audeze LCD-2. The punch is truly remarkable and invites you to turn the volume up to insanely high levels, thanks also to the very low distortion. This isn't the usual "bloated" bass of many in-ear headphones, but "HiFi" bass in the truest sense of the word.

In the midrange and highs, the taut and lively character is maintained, with admirable coherence. Low distortion, combined with excellent transient control, make the reproduction of vocals, percussion, and string instruments truly realistic and engaging, without ever verging on hyper-realism or listening fatigue. Cymbal reproduction delivers a suitably metallic sound, yet harmonically rich and realistic. It's no easy task to combine such a precise, detailed, and dynamic sound with a virtually total absence of listening fatigue.

From the standpoint of three-dimensional reconstruction of the sound image, open-back headphones, perhaps planar ones, clearly perform better, so the sensation of “sound inside your head” is there, but the layering and clear separation of sounds and instruments greatly helps make listening natural, despite all the limitations of the technology used.

Yanyin IEMs enjoy an almost cult-like following among headphone enthusiasts, and I must say that - from this first taste - it's more than deserved. They're not cheap, of course, but the quality is truly very, very high. Furthermore, the sound can also be adjusted to your liking, particularly in terms of bass response. At this point, I'd be curious to try the top-of-the-line ones; I bet it should be fun.

Remarks & Complaints

Manufacturing & Finish.
The build quality, starting with the beautiful packaging, is very high, as befits mid-to-high-end IEMs. The cable, connectors, and body of the IEMs seem very sturdy. The micro-switch system for adjusting the frequency response is a complete disaster; it lacks clear explanations and is very difficult to use, given their microscopic dimensions. It takes more than one try to find the perfect fit for your ear canal. The low impedance and high sensitivity make it possible to use the headphone output of smartphones and computers, but obviously they deserve much better.
Sound.
No particular complaints. They are certainly not headphones for those who enjoy relaxed, euphonic listening, with smoothed-out high frequencies and calm dynamics. The sound is full of character, lively, and precise. Perhaps it could be called “monitor-like”, but it's never fatiguing.

Conclusions

Yanyin only makes mid-to-high-end IEMs, and it shows. They clearly know what to do to achieve certain results. These Canon Pro pleasantly surprised me. Once I found the right interface with my ears, I let myself be transported into their sonic universe made of a solid, powerful, fast, extended, and controlled bass range and a precise and transparent mid-high range, yet never fatiguing. Full marks, as far as I'm concerned.

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Yanyin Canon Pro - hybrid IEM earphones

A cool “hybrid” musical canon

Foreword

A closer look

Claimed tech specs

A cool “hybrid” musical canon

Remarks & Complaints

Conclusions