4.9 out of 5 StarsBased on 22 reviews
Award

Kiwi Ears Aether

15.3 mm planar-magnetic in-ear monitor with detachable two-pin cable
$169.99
15.3 mm planar driver
The unusually large planar diaphragm
Single-transducer coherence
One planar driver reproduces
Low 14 Ohm impedance
Easy to drive
Detachable two-pin cable
The 0.78 mm connection
1-Year Warranty7-Day ReturnsFree Shipping over $50

15.3 mm Planar Magnetic Driver

Large-format planar speed in a focused in-ear design.

Aether uses a 15.3 mm planar-magnetic driver to move the entire diaphragm as a controlled surface. The design targets quick attack, low distortion, clean midrange articulation, and consistent full-range behavior from a single transducer.

15.3 mm planar driver

Single-transducer coherence

Low 14 Ohm impedance

Detachable two-pin cable

Kiwi Ears Aether
Kiwi Ears Aether
Kiwi Ears Aether

Large-format planar speed

A large-diaphragm planar IEM designed for fast transients, clean vocals, controlled bass, and smooth high-frequency detail.

15.3 mm planar driver
Single-transducer coherence
01 15.3 mm planar driver

The unusually large planar diaphragm provides broad radiating area and fast, evenly distributed drive force.

02 Single-transducer coherence

One planar driver reproduces the full range, avoiding crossover transitions while retaining planar transient speed.

03 Low 14 Ohm impedance

Aether is easy to bring to volume, but a clean source with low noise and suitable output impedance remains important.

04 Detachable two-pin cable

The 0.78 mm connection supports compatible replacement and upgrade cables.

Aether emphasizes planar speed and coherence, with a clean neutral-leaning balance, controlled low frequencies, articulate vocals, and smooth high-frequency extension.

Kiwi Ears Aether
Levels matched at 1 kHz

The result is a completely balanced tone that accurately reflects the best qualities of each driver.

Bass Bass is quick and controlled, prioritizing texture
Mids Mids are clean and vocal-focused, with planar articulation
Treble Treble is smooth and detailed
Soundstage The stage is open and well separated
Imaging Fast transient response supports precise edges

How It Sounds

Clean, fast, and coherent with the texture

Aether is for listeners who value speed, vocal clarity, and controlled full-range behavior more than exaggerated bass or treble effects.

Planar
Fast
Clean
Low-distortion planar driver

15.3 mm planar driver

Low-distortion planar driver

One planar driver reproduces the full range, avoiding crossover transitions while retaining planar transient speed.

Who it's for

Clean, fast, and coherent

The planar enthusiast

A 15.3 mm planar driver brings the speed and diaphragm control of planar technology to an in-ear format.

PlanarLarge DiaphragmFast

The vocal listener

Clean, articulate mids keep singers and acoustic instruments at the center of the presentation.

VocalsClarityNatural

The detail seeker

Fast attack and controlled decay make small production details and layered textures easier to follow.

DetailTransientsTexture

The neutral-leaning listener

Aether favors control and coherence over a heavily sculpted V-shaped signature.

ControlledCoherentBalanced

Studio-Grade Sound

Designed for professionals and audiophiles, the Aether delivers clean, balanced, and natural sound with precise detail and an immersive listening experience.

JazzClassical

Natural, Precise Sound

Fast planar response, clean mids, controlled bass, and a wide, precise soundstage deliver natural tonality, immersive imaging, and detailed musical expression.

20Hz-20KHzFrequency Range
110 dB SPL/mWSensitivity
DesktopPortable

Focused Listening

A clean source with suitable volume headroom lets the planar driver show its speed, extension, and low-level detail.

15.3 mmLarge Planar Driver
N52Neodymium Magnets

Fast, detail-rich music

The 15.3 mm planar driver follows percussion, plucked strings, and layered electronic transients with speed and low overhang.

Vocals and acoustic sessions

Clean mids and controlled bass preserve vocal articulation, string texture, piano attacks, and natural room ambience.

How it compares

Technical Specifications

What's in the box

Inside the Box

Monitors

Kiwi Ears Aether IEM × 1 Pair

Cable

Detachable 0.78mm-2Pin 3.5mm Cable × 1

Eartips

Silicone Eartips (Multiple Sizes)

Storage

Carrying Case × 1

Extras

User Manual × 1

Drivers

Configuration

1 x 15.3 mm planar-magnetic driver

Acoustic approach

Single full-range planar transducer

Acoustics

Impedance

14 Ohm

Sensitivity

105dB SPL/mW @ 1kHz

Frequency Response

20 Hz-20 kHz

Build & Fit

Connector

0.78 mm 2-pin

Cable

Optional

Detachable 0.78mm-2Pin 3.5mm Cable × 1

How it compares

Aether in the lineup.

Signature

["Planar", "Fast", "Clean"]

["Quadbrid", "Resolution", "Air"]

["Open-Back", "Quadbrid", "Airy"]

["Sub-Bass", "Open Mids", "Sparkle"]

Best for

["The planar enthusiast"]

["The technology enthusiast"]

["The technology enthusiast"]

["The flagship hybrid listener"]

Standout

15.3 mm planar driver

DLC dynamic bass driver

Seven drivers across four technologies

10 mm bioceramic dynamic driver

Price

$169.99

$219.00

$269.00

$299.00

unboxing video

See it in Motion.

Verified buyers

Customer Reviews

Get the most out of it

Pairs well with

In-Ear Monitors

Kiwi Ears

KE4 II
$0.00
Reservation Card
In-Ear Monitors

Kiwi Ears × ふぐみかん

EMBER
$135.00
DAC/AMP

Kiwi Ears

Coda
$29.99
Eartips
$9.99
Audio Cable

Kiwi Ears x B Media

Terras Headphone Cable
From $47.99

Before you buy

Product FAQ.

Aether is for listeners who value speed, vocal clarity, and controlled full-range behavior more than exaggerated bass or treble effects.
Kiwi Ears Aether is especially well suited to the planar enthusiast, the vocal listener, the detail seeker, and the neutral-leaning listener. It is a large-diaphragm planar IEM designed for fast transients, clean vocals, controlled bass, and smooth high-frequency detail.
Yes. Planar speed and clean separation support directional cues and complex game mixes, although listeners seeking very heavy impact may prefer a more bass-forward model.
Aether can be used with a capable portable dongle or player. A clean source with suitable headroom helps the large planar driver retain dynamics and control at the listener's preferred volume.
Yes. It uses 0.78 mm 2-pin.
The current official package list includes 1 pair Kiwi Ears Aether IEMs and Detachable 0.78 mm two-pin cable.
Start with the size that seals evenly without creating pressure. A consistent seal is essential for bass extension, channel balance, isolation, and stable imaging.
Pair it with a clean source and the correct cable termination. Relevant Kiwi Ears options in this content set include Kiwi Ears Allegro Mini, Kiwi Ears x B_Media: Terras, and Kiwi Ears Flow Ear Tips.