Symphonium Audio
Singapore, Singapore, Singapore · founded 2016
Boutique Singaporean IEM maker celebrated for the balanced-armature Helios reference monitor. Deeply intertwined with fellow Singapore boutique Subtonic — the two share R&D and co-developed FLAT tuning tech, and Symphonium is the exclusive manufacturer of Subtonic's flagship STORM.
Symphonium Audio is a boutique Singaporean in-ear monitor manufacturer. Conceptualized in 2016 by a founding team of three and launched publicly at CanJam Singapore 2018 with the Aurora and Mirage, the company designs, assembles, and QCs all of its IEMs in-house in Singapore. Symphonium is best known for its balanced-armature IEMs built around proprietary technologies such as the TrueX multi-way crossover, CORE+ acoustic chamber, and (with partner Subtonic) FLAT impedance/attenuation tuning. Since 2021 it has partnered closely with fellow Singaporean boutique Subtonic to share R&D and co-develop products; Symphonium is the exclusive designated manufacturer for Subtonic’s flagship STORM. It remains an independent firm with no conglomerate or parent ownership.
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At a glance
- Type
- Manufacturer
- Founded
- 2016
- Headquarters
- Singapore, Singapore, Singapore
- Price range
- Premium
- Makes / sells
- in-ear monitors, cables, accessories, digital player bundles
- Known for
- balanced-armature IEMs, boutique / small-batch manufacturing, in-house acoustic engineering (TrueX crossover, CORE+ chamber, FLAT tuning), 3D-printed acoustic labyrinth designs, reference / neutral tuning
- Website
- www.symphoniumaudio.com
Notable products
- Helios — Full balanced-armature reference IEM (2021), tuned in collaboration with Subtonic; the model that established Symphonium's reputation for neutral, technical BA sound.
- Crimson — Full balanced-armature IEM with TrueX 4-way crossover, ~$1,499; all-BA design.
- Titan — Hybrid design (balanced armature + custom-tuned dynamic driver), ~$999 — NOT all-BA.
- Zenith — 4BA flagship (2026), a Symphonium x Elise Audio collaboration ('final form of four'), ~$1,799 MSRP; all-BA with acoustic-labyrinth chamber.
- Triton — Hybrid BA + DD IEM (2021), also tuned in collaboration with Subtonic; introduced FLAT tuning tech.
- Meteor — Balanced-armature IEM in the mid-tier lineup.
- Aurora / Mirage — The company's first two products, launched at CanJam Singapore 2018.
Supplies
Notable brands that use their components:
Sources: Symphonium Audio — Our Story (official) · Symphonium Audio — Our Partners (Subtonic / STORM manufacturing) · Symphonium Audio — Titan product page (hybrid BA+DD, $999) · Symphonium Audio — Crimson product page (full BA, $1,499) · Symphonium Audio — Helios product page · Twister6 Reviews — Symphonium x Elise Audio Zenith (2026, 4BA, $1,799) · Head-Fi — Symphonium Audio (Singaporean manufacturer) thread