Fir Audio Radon 6 UIEM

With an all-new satin black machined aluminum body, gorgeous sapphire crystal glass faceplates, and a pure silver cable that's exclusively designed for the Radon 6.

The tri-brid system consists of tubeless balanced armature Open Drivers, an ultra-high electrostatic tweeter, and a dynamic driver with the revolutionary Kinetic Bass technology – all working in perfect harmony.

Fir Audio's Kinetic Bass technology features a 10mm dynamic driver that is open and ported in an optimised manner directly facing the outside of the IEM shell, allowing Radon 6 to transmit directly to the ear cartilage and surrounding area.

These low frequencies are converted to kinetic energy and reach the inner ear via bone conduction. This results in a more immersive sound with a bass you can feel with increased dimension and an off-the-charts low frequency extension.

Higher up, Radon 6's open drivers use no sound tubes and radiate sound directly into a sound reactor which allows the sound to freely flow to the ear canal. This results in a much larger soundstage and a more pure and natural listening experience.

Radon 6's sound reactor is a chamber which shapes the sound that comes directly from the open drivers. Fir's sound reactor uses natural acoustics to shape the sound instead of dampers and filters which are found in most traditional IEMs. 

And Fir's open high driver is located in the canal stem and features a sound reflector that directs the high frequencies into the ear canal. The results are remarkably smooth and airy highs with great extension, without harshness, from this flagship.

View Fir Audio's other releases here, or our other earphones here.