Linsoul Kiwi Ears Étude Beryllium DD + 3BA + Vibration Transducer HIFI IEM Earphone with Precision Tuning Wired Earbuds
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Specifications
- Brand Name
- linsoul
- Style
- Wired in-ear headphones
- Vocalism Principle
- Balanced Armature
- Origin
- Mainland China
- Material
- Metal
- High-concerned chemical
- None
- Communication
- Wired
- Volume Control
- Yes
- Category
- Earphones & Headphones
- Impedance Range
- up to 32 Ω
- Active Noise-Cancellation
- No
- Frequency Response Range
- 20 - 20000
- Voice assistant built-in
- No
- Wireless Type
- None
- Control Button
- No
- Sensitivity
- 104
Product Description
Kiwi Ears Étude HIFI IEM Earphone Beryllium DD + 3BA + Vibration Transducer Wired Earbuds with Precision Tuning
Kiwi Ears Étude: Precision Meets Innovation
Featuring a beryllium-plated dynamic driver, custom balanced armatures, and the innovative Kiwi Vibration Transducer (KVT), the Étude delivers powerful, tactile low-end with rich detail and seamless tonal balance. Experience deep, controlled bass, a natural midrange, and airy treble for an immersive and true-to-life listening experience.
Features
Exclusive KVT Vibration Driver
10mm Beryllium-Plated Diaphragm Subwoofer
Precision Tuning for Perfect Tonal Balance
Custom In-House Balanced Armature Drivers
KVT: Kiwi Vibration Transducer
The Kiwi Ears Étude was developed to showcase the KVT - Kiwi Vibration Transducer. Our in-house vibration transducer is not like bone conduction drivers currently used in earphones. Rather, it is more akin to scaled down miniature vibration drivers that are used in bluetooth vibration speakers. The KVT uses strong N52 neodymium magnets that are suspended by heavy-tension spring systems that physically vibrate a conduction plate upon actuation by electrical currents. The KVT provides physical tactile vibrations to relay the sound, enhancing low-mid acoustics.
Beryllium Diaphragm Subwoofers
A 10mm Beryllium-electroplated diaphragm driver is utilized for the bass. Engineered to serve as a subwoofer, the dynamic driver dishes out incredibly precise and fast kick drum hits and rich bass guitar notes. Paired with the KVT, the lows deliver deep rumble and a 3D-like imaging.
The Étude has been carefully engineered to meet Kiwi Ear’s standards for tonal balance. The sub-bass is powerful yet controlled at 8dB to provide the correct balance between richness and clarity. The midrange is flat and neutral, with a 250Hz bass shelf crossover, which allows vocals and instruments to sound accurate and without any coloring. The treble has been acoustically tuned to be comfortable and resonant, establishing the Étude’s tonal balance.
Custom Balanced Armature Drivers
The Étude utilizes Kiwi Ears’ custom in-house balanced armature drivers. A single high-efficiency midrange driver delivers robust and undistorted fundamental frequencies of vocals and instruments. A dual ultra-high frequency tweeter is utilized to bring out microdetails and air within the music. Paired together, the transitions throughout the entire frequency range is seamless and natural.
Product Technical Information
Model | KIWIEARS Étude |
Sensitivity(1KHz) | 104dB SPL/mW |
Frequency Range | 20Hz-20KHz |
Impedance(1KHz) | 5 Ohm |
Driver | 3BA+1DD+1BN |
Earphone Jack | 0.78mm/2PIN |
Pros & Cons
Pros
- Multi-driver audio setup with a beryllium-plated dynamic driver and three balanced armatures delivers detailed, balanced high-fidelity sound
- Includes a Kiwi Vibration Transducer (KVT) for enhanced bass response and a more immersive listening experience
- Built-in volume control allows for quick, easy audio adjustment without needing to adjust settings on your connected device
- Wired connection eliminates audio lag and ensures reliable, consistent audio playback compared to wireless earbuds
Cons
- No active noise cancellation functionality, so external background noise will be clearly audible during listening sessions
- Wired design requires a 3.5mm headphone jack, so you will need a separate adapter to use these earbuds with newer smartphones that lack a dedicated headphone port
- Compatible silicone ear tips are not included in the standard package, so you will need to purchase them separately to achieve a secure, comfortable fit in your ear canals
- The 104dB sensitivity rating means the earphones can reach potentially harmful volume levels with minimal input, requiring careful adjustment to avoid hearing damage
Common Questions
What materials are used to construct these Kiwi Ears Étude IEMs?
The earphone body is made from metal, and they feature a beryllium-plated dynamic driver alongside custom balanced armature drivers, per the product description.
What are the impedance and sensitivity ratings for these IEMs?
These earphones have an impedance of up to 32Ω and a sensitivity rating of 104dB, as listed in the product specifications.
Which audio devices are these wired IEMs compatible with?
They are wired earphones with a standard 3.5mm connection, making them compatible with smartphones, laptops, desktop audio players, and other devices with a 3.5mm headphone jack.
What unique audio features do these Kiwi Ears Étude IEMs include?
They feature a beryllium-plated dynamic driver, three custom balanced armature drivers, and a Kiwi Vibration Transducer (KVT) for enhanced bass and immersive audio performance, per the product description.
What is the country of origin for these IEMs, and do they include a volume control?
This product is manufactured in Mainland China, and these earphones include a built-in volume control, as specified in the product specs.
Product information last updated on January 15, 2026