64 Audio is one of the most influential independent boutique IEM makers in the world, founded and still led by Vitaliy Belonozhko. It matters because it invented and patented several IEM technologies (apex pressure relief, tia tubeless open-BA drivers, LID) that reshaped high-end in-ear design, and its U12t is a long-standing reference benchmark in the audiophile community — exactly the kind of source-cited, technically substantive boutique brand the wedge is built on.
The people behind the sound.
Headphone Pro is a curated directory of the whole headphone & IEM industry — the independent and boutique makers, the suppliers whose drivers and parts go inside them, and the retailers who sell them. Who they are, where they are, and what they do.
A directory that actually knows the field
We say plainly who's a family-run boutique and who's conglomerate-owned — a fact most brand lists bury.
Founders, founding years, and headquarters are sourced and linked — curated by someone who knows the space.
Where each maker is actually based and builds, from Berwyn to Chengdu to Saint-Étienne.
Not just brands — the driver and component suppliers (Knowles, Sonion, Foster) and the retailers who sell it, in one place.
Featured makers
63 makers · 15 suppliers · 18 retailersCampfire Audio is one of the very few premium IEM makers that designs and hand-builds its products in the United States rather than outsourcing to Asia, and its 2016 Andromeda is widely regarded as a landmark that helped bring in-ear monitors into the mainstream audiophile world.
Dan Clark Audio is one of the most respected independent, founder-run headphone makers in the US high-end market, known for pioneering 3D-printed headphone construction and its proprietary AMTS acoustic tuning technology in award-winning flagship planars like the STEALTH and EXPANSE. It sits alongside peers such as ZMF and Audeze as a benchmark boutique planar/electrostatic manufacturer.
A summit-fi IEM manufacturer that pushed multi-driver architecture to extremes — its Odin (tribrid) and Raven (12-driver quadbrid with bone conduction) were among the most complex universal IEMs on the market. The company grew out of Jack Vang's EarWerkz brand and his father Dean Vang's medical/hearing-aid acoustic engineering background. It shut down abruptly on February 27, 2026; co-founder Jack Vang subsequently launched a new venture, Volk Audio.
Independent Japanese boutique whose flagship "8000" designations (A8000 IEM, D8000 headphone) are reserved for landmark products; known for pure-beryllium and planar drivers plus a strong reputation-building budget line (E-series).
Grado is one of the archetypal independent, family-run boutique audio makers: three generations, hand-assembly in a single Brooklyn building, no mass advertising, and a distinctive house sound. It matters historically as a pioneer of both the moving-coil phono cartridge and the modern high-end dynamic headphone.