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

15.3 mm Planar Magnetic Driver
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
A large-diaphragm planar IEM designed for fast transients, clean vocals, controlled bass, and smooth high-frequency detail.
The unusually large planar diaphragm provides broad radiating area and fast, evenly distributed drive force.
One planar driver reproduces the full range, avoiding crossover transitions while retaining planar transient speed.
Aether is easy to bring to volume, but a clean source with low noise and suitable output impedance remains important.
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.
The result is a completely balanced tone that accurately reflects the best qualities of each driver.
How It Sounds
Aether is for listeners who value speed, vocal clarity, and controlled full-range behavior more than exaggerated bass or treble effects.
15.3 mm planar driver
One planar driver reproduces the full range, avoiding crossover transitions while retaining planar transient speed.
Who it's for
A 15.3 mm planar driver brings the speed and diaphragm control of planar technology to an in-ear format.
Clean, articulate mids keep singers and acoustic instruments at the center of the presentation.
Fast attack and controlled decay make small production details and layered textures easier to follow.
Aether favors control and coherence over a heavily sculpted V-shaped signature.
Studio-Grade Sound
Designed for professionals and audiophiles, the Aether delivers clean, balanced, and natural sound with precise detail and an immersive listening experience.
Fast planar response, clean mids, controlled bass, and a wide, precise soundstage deliver natural tonality, immersive imaging, and detailed musical expression.
A clean source with suitable volume headroom lets the planar driver show its speed, extension, and low-level detail.
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

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
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
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