Manufacturer independent

FIR Audio

Vancouver, Washington, United States · founded 2018

Founded by 64 Audio's former CEO Bogdan Belonozhko after his April 2018 exit; represents a boutique breakaway from one of the leading US custom-IEM makers. Known for the ATOM modular venting system and Kinetic Bass, which uses the earpiece shell itself as a dynamic bass transducer.

FIR Audio is a US boutique manufacturer of high-end in-ear monitors (IEMs) founded in 2018 by Bogdan Belonozhko, the former CEO of 64 Audio, together with his brother Alex Belonozhko and Daniel Lifflander. The founders left 64 Audio to build a smaller, faster-moving team focused on innovative IEM design. The company makes both universal and custom-fit monitors aimed at professional musicians and audiophiles, and is known for proprietary technologies including the ATOM modular venting system, Kinetic/Tactile Bass (using the shell as a dynamic-bass transducer), and the swappable RCX connector. Headquartered in Vancouver, Washington (Portland metro), with additional offices in Nashville, Tennessee; Burbank, California; and Dongguan, China.

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At a glance

Type
Manufacturer
Founder
Bogdan Belonozhko (with brother Alex Belonozhko and Daniel Lifflander)
Founded
2018
Headquarters
Vancouver, Washington, United States
Price range
Summit-fi
Makes / sells
in-ear monitors, custom in-ear monitors, IEM accessories, IEM cables
Known for
hybrid multi-driver IEMs, electrostatic + dynamic + balanced-armature designs, custom and universal fit monitors, ATOM modular venting, Kinetic Bass / Tactile Bass shell transducer, RCX swappable connector system
Website
www.firaudio.com

Notable products

  • Xenon 6 (XE6) — Flagship Frontier Series IEM; 4 BA + 1 DD + 1 EST hybrid, ~$3,899
  • Radon 6 (RN6) — Limited-edition anniversary model, more treble-forward tuning than Xenon 6; same 4 BA + 1 DD + 1 EST config, ~$3,299; ~300 universal / 100 custom units
  • Krypton 5 (KR5) — Frontier Series; 4 BA + 1 DD, ~$2,899; won Top Gear 2022 Best CIEM award
  • Neon 4 (NE4) — Entry Frontier Series model; 3 BA + 1 DD, ~$2,299
  • M-Series — FIR Audio's first IEM line, released 2019
  • VxV (5x5) — Popular mid-range hybrid IEM

Sources: FIR Audio — About (official) · FIR Audio — ATOM Venting technology (official) · The Headphone List — THL Insights: FIR Audio · Audio Discourse — Fir Audio Frontier Series Impressions (NE4, KR5, RN6, XE6) · Crunchbase — Bogdan Belonozhko, Co-Founder