In-Ear Monitors
Kiwi Ears Cadenza Review: A $35 IEM With a Single Beryllium Driver
A $35 in-ear monitor built around a single 10mm beryllium driver, with a relaxed but detailed tuning and a two-pin cable. Here is what to know before buying.
Introduction
The Kiwi Ears Cadenza is an in-ear monitor that sells for around $35, and a $3 coupon has at times brought it closer to $32. What makes it worth a closer look is not the price alone but the driver inside: a single 10mm beryllium unit, a material that has appeared in far more expensive designs. Some brands have charged upwards of $400 for a set built around a single beryllium driver, so seeing the same approach at this price point is the interesting part.
The Cadenza has also built up a body of owner feedback that is unusual for this segment, with more than a hundred five-star ratings and an overall score around 4.5 stars. In a market where new budget models arrive constantly, a set that holds that level of attention is worth understanding.

This article covers what the Cadenza does well, where it holds back, and who will get the most from it.
Who this product is for
The Cadenza suits listeners who value a relaxed, non-fatiguing sound over maximum bite and analysis. If long sessions with brighter in-ear monitors leave you tired, this tuning is aimed squarely at you.
It is also a sensible choice for anyone who wants a genuinely capable spare set: something inexpensive enough to keep in a backpack, take on the road, or hand to a family member without worrying about the cost of replacing it.
Design and build
The Cadenza comes in a range of colors. The set examined here is a high-polish blue with a shimmering, slightly inconsistent finish across the surface, and individual units appear to vary a little in how that pattern falls.
The connection is a two-pin design rather than the older MMCX style. Each insert is marked for left and right, and the housing is shaped so the body of the monitor faces backwards when worn.

The included cable is serviceable rather than special, which is expected at this price, and it falls short of the cables normally bundled with $100 in-ear monitors. It does include a small slider keeper to hold the two sides together, and the 3.5mm plug is a right-angle design. Three sets of silicone ear tips are supplied, in clear, black, and red on black. Packaging is deliberately plain.
Main strengths
The defining strength is control. Bass is elevated but stays out of the way of the midrange, so vocals and instruments keep their clarity even on bass-heavy material. Hi-hats come through crisp, with a character closer to a metal-dome tweeter than a soft-dome one.
Spatial presentation is another high point. Placement cues land convincingly to the sides, and on some tracks the Cadenza images with a precision normally associated with multi-driver designs.
Just as important, the Cadenza is not fatiguing. Percussion attacks are smoothed slightly rather than sharpened, which makes extended listening easy. At this price, it is one of the most well-rounded in-ear monitors available.
Sound impressions
Mid-bass is a touch elevated, with a broad lift around 100Hz that adds weight without masking the midrange. The midrange itself stays close to flat around 1kHz, with a small dip just below that region.
Imaging is a genuine strength. On material with hard-panned instrumentation, sounds arrive well outside the head and hold their position, giving a sense of space that budget sets often flatten out.

Acoustic material reveals the trade-offs. Fingerpicked guitar loses some of the fine detail that more analytical sets resolve, and male vocals come through clean but with slightly less low-end body than some references, suggesting a mild scoop in the region around 400Hz.
Higher up, sibilance is present but never pushed forward, and the top end stays relaxed rather than rolled off. There is a dip through roughly 4kHz to 6kHz and a rise around 7kHz to 8kHz, which keeps detail audible while softening the initial attack of percussion. A light veil sits over parts of the midrange and upper treble.
Things to consider before buying
If your priority is the last word in fine detail and outright clarity, the Cadenza is not the most analytical option at this price. Sets tuned that way reveal more texture, but they tend to become tiring much sooner, which is the trade the Cadenza deliberately avoids.
Housing finishes vary between units, so the exact pattern on your set may differ from product photos. The supplied cable is basic and the tips are simple silicone, so a little tip experimentation is worthwhile to get a proper seal. This is a wired in-ear monitor only, with no wireless mode or active features.
Buying advice
The Cadenza is easy to drive. It works well from a simple, inexpensive Lightning to 3.5mm dongle adapter, which is enough to get a clean, enjoyable result. A more costly resistor-ladder DAC does sound better, but it adds a slightly thick, syrupy character that does not flatter the Cadenza as much. The inexpensive dongle’s extra emphasis in the treble pairs more naturally with this tuning, which keeps the total system cost low.
At around $32 to $35, the Cadenza is a low-risk purchase. It is a good fit for a first serious in-ear monitor, a travel backup, or a gift for someone who wants better sound without spending much.

Because the set costs so little, replacing it after damage or loss is far less painful than with a premium model, which makes it a reasonable companion for a backpack, a commute, or everyday use away from a desk.
Conclusion
The Kiwi Ears Cadenza gets the fundamentals right: a single 10mm beryllium driver, a controlled bass lift that leaves the midrange intact, convincing imaging, and a top end that stays detailed without turning harsh.
Its compromises are real but consistent with the price. There is a light veil through parts of the midrange and upper treble, the cable is basic, and the finish varies from unit to unit. For listeners who want a relaxed, non-fatiguing in-ear monitor that costs about as much as a pair of budget earbuds, the Cadenza is an easy recommendation.
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