Field Coil Speakers | Official Manufacturer Since 2006 | Lii Audio
Lii Audio is the official manufacturer of high-efficiency field coil speakers and field coil full-range drivers, designed and manufactured in-house in Hangzhou, China since 2006.
Our field coil systems are built for tube amplifiers, horn loudspeakers, open baffle and large enclosure designs, with a focus on control, dynamics, phase coherence and natural sound reproduction.
This is the official Lii Audio website.
All Lii Audio field coil drivers are developed and manufactured in-house, ensuring authenticity, consistency and long-term reliability.
What Is a Field Coil Speaker?
A field coil speaker replaces the permanent magnet with an electromagnet powered by an external supply. This allows precise control over magnetic flux, improving sensitivity, transient response and overall musical realism.
Unlike conventional permanent magnet drivers, field coil systems offer a more adjustable and refined motor structure, valued by audiophiles for their realism, immediacy and tonal richness.
Why Choose Field Coil Drivers?
- Adjustable magnetic field for precise tuning
- Higher efficiency and dynamic range
- Improved tonal accuracy and realism
- Superior micro-detail and presence
- Exceptional match with tube amplifiers and high-efficiency systems
Designed for High-Efficiency Audio Systems
Lii Audio field coil drivers are optimized for open baffle speakers, large enclosure systems, horn loudspeakers and low-power tube amplification.
Our approach prioritizes coherence, simplicity and musical realism over unnecessary complexity, allowing music to flow with greater ease from a unified source.
Less parts. Less power. More music.
Explore Lii Audio Field Coil Drivers
FC10 Field Coil Driver
Compact field coil full-range driver offering clarity, efficiency and precise musical expression.
View productFC15 Field Coil Driver
Large-format field coil driver designed for scale, tonal richness and effortless dynamics.
View productFC18 Field Coil Driver
High-performance field coil driver developed for large systems, horn loudspeakers and high-efficiency listening rooms.
View productRelated Technologies
Explore our full range drivers guide, dedicated woofers and tube amplifiers designed to work with high-efficiency drivers.
Lii Audio — Official Manufacturer Since 2006
Lii Audio is the official manufacturer of high-efficiency field coil drivers, full-range speakers, woofers and tube amplifiers. All products are designed and manufactured in-house in Hangzhou, China.