UM Sound Workshop
A Global High-End Custom Earphone Brand· Founded in 2007 with a Passion for Acoustics
Pioneer in Sound Technology
At UM Acoustic Workshop, we believe that exceptional sound is both a science and an art.
UM was one of the first brands in the world to apply bone conduction technology to wired in-ear monitors, holding multiple patents for bone conduction applications. Through groundbreaking acoustic architectures, we redefine the immersive music experience.
Our technology spans a wide range of innovations
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Driver Technology: Multi-driver balanced armature, dynamic, hybrid, electronic crossover, and electrostatic drivers Innovative
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Applications: Bone conduction, piezoelectric ceramics, micro-electrostatic, micro-planar, MEMS
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Product Forms: High-end universal in-ear monitors, custom-fit IEMs, premium Bluetooth earphones, and over-ear headphones
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Materials & Craftsmanship: Resin, titanium, carbon fiber, solid wood, ceramic, and fully bespoke series
Our four flagship series — Mason, Mentor, MEST, and Maven — have not only gained worldwide acclaim but also earned the trust of countless musicians, audio engineers, and audiophiles alike.
Digital Precision Control System
UM is not a small workshop, but one of the companies in the HiFi industry with the largest investment in R&D and production equipment.
Our five-story independent workshop building is equipped with professional equipment across the entire supply chain:
- Manufacturing Systems: High-precision 3D resin and titanium printers, advanced shell-forming machines
- Testing Instruments: Bone-conduction analyzers, driver testing equipment, precision tooling, and environmental testing devices
- Acoustic Facilities: Full anechoic chamber and a digitally controlled tuning workshop
- Management Systems: Ear-impression database and end-to-end digital production workflow
From ear-impression collection to shell fabrication, from frequency response calibration to final quality tests, every stage is governed by data-driven standards to ensure acoustic accuracy and product reliability.
A Cross-Disciplinary Acoustic Engineering Team
UM brings together specialists from acoustical engineering, materials science, auditory physiology, and other related fields. We do not rely on individual heroism — instead, we trust in collective intelligence and a systematic, research-driven development process.
Craftsmanship That Brings Warmth to Precision
Beyond digital precision, UM is supported by more than a dozen master artisans—each with over a decade of experience. They are the soul of UM, transforming cold components into living works of auditory art through their hands. Every pair of earphones goes through: Hand-casting and cavity shaping, Precision driver assembly and circuit soldering, Multiple auditory tests and personalized tuning. Through more than a hundred processes, the artisans' experience and dedication become a source of warmth that digital standards cannot replace.
UM — Sound, As It Should Be
We don’t create sound — we restore its truth.
From technology to craftsmanship, from data-driven precision to the warmth of human touch, UM blends systematic expertise with artisanal artistry. Every pair of earphones becomes an extension of your hearing and an expression of your individuality.