FIR Audio at Audio46

FIR Audio Radon 6 LIMITED EDITION Universal In-Ear Monitor



Product SKU: RN6 Radon


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Product Details

Audio46's Opinion

The Fir Audio Radon 6 has an almost immaculate sound. Every section of the sound signature is exceptionally clean and expressive. The soundstage might not be the most holographic or open, but it gives the sound elements enough identity to stick out. Its design is unique and quite striking. Its driver configuration is also a designer rarely seen, as the technology used here is pretty exciting. The Radon 6 is very pricy and in the upper tier of audiophile IEMs, but if you have the cash, then the Radon 6 is one of the best around.

Our Full Review

↓ Details provided by FIR Audio

Radon 6

The Radon 6 is a Limited Edition Anniversary model, the Universal-Fit model is limited to 300 production units world-wild. Celebrating 5 years in pursuit of the ultimate in-ear monitor listening experience.

We’ve applied everything we learned from Frontier Series and mindfully retuned our popular 6-driver model and arrived at a leaner, reference warm sound signature. Featuring proprietary technologies such as Kinetic Bass, ATOM Venting, Open Acoustics, and Rigid Technologies.

The Rn6 Universal-Fit model has an all-new satin black machined aluminum body, gorgeous sapphire crystal glass faceplates, and a pure silver oxygen-free cable with copper shielding thats exclusively designed and built for the Radon 6.


Celebrating 5 years of FIR Audio. Releasing a new Limited Edition model with an all-new design and sound signature.


A hybrid conduction technology that takes the IEM sound experience to a whole new level. Kinetic Bass is a bass you can feel.


A pressure relief system that vents pressures that build up in a sealed ear canal. Greatly reducing listener fatigue so you can hear more and listen longer.


Open drivers with no sound tubes that radiate sound directly into the Sound Reactor which results in a much larger sound stage. 


Proprietary technologies that provide industry leading durability and serviceability of our in-ear monitor products.


1x Kinetic Bass 10mm Dynamic Driver
2x OpenDriver Mid BA Driver
1x OpenDriver High-Mid BA Driver
1x OpenDriver High BA Driver (with Sound Reflector)
1x OpenDriver Ultra-high Electrostatic Driver


Freq. Range: 20-20kHz
Impedance: 28ohms


Machined Aluminum Shells
Sapphire Crystal Glass Faceplates
Pure silver, Oxygen-free, copper shielded Black Cable
Gold-plated balanced 4.4mm Termination
ATOM XS Interchangeable Modules
Genuine Leather Protective Case


1 Year Warranty

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