Fir Audio Radon 6 UIEM Brand_Altalune *For irregular shaped IEMs and

*For irregular shaped IEMs and non-standard cables

we've modernised it with cutting-edge tech: digitised acoustic design

Yet its true headline act is the addition of a HDMI ARC input

but the advent of the R2R RU6 USB-C DAC/amp dongle establishes them as masters of the fully-discrete resistor DAC topology in portable audio

Fir Audio Radon 6 UIEM Brand_Altalune *For irregular shaped IEMs andThe Radon 6 is FIR Audios fifth anniversary celebratory earphone model, limited to 300 production units world wide. Radon 6 sums up the best of Fir's recent work to Twister6. It made Headfonia's Recommended Buys list. Headfonics say it "works wonderfully well with almost everything, especially if you want an open midrange with excellent levels of detail". It's highly recommended by Ear Fidelity who tell you to "buy the Radon 6 while you still can"!