FC 15

2120 US $ per pair (with Power supply included)

Contact us to get a quote with shipping at sales@liiaudiohifi.com

Unleashing the Power of Field Coil Purity

The Lii Audio FC-15 is a state-of-the-art 15-inch full-range field coil driver designed for uncompromising audio purists. With its hand-built field coil motor, exceptional 96.7 dB sensitivity, and extended frequency range from 30 Hz to 20 kHz, the FC-15 delivers unparalleled dynamics, speed, and detail. It redefines what a single driver can do—combining vintage field coil magic with modern precision engineering.

Featuring a 38 mm voice coil, ultra-light cone assembly, and large 120 mm field coil motor, the FC-15 offers remarkable tonal richness and lifelike imaging, all without the need for a crossover. Whether installed in open-baffle, horn, or transmission line enclosures, the FC-15 offers a breathtaking sense of scale, air, and immediacy that few drivers can match.

Key Features

15" Field Coil Full-Range Driver – Classic technology, modern performance
Wideband Response (30 Hz – 20 kHz) – Extended low and high frequency clarity
High Sensitivity (96.7 dB) – Compatible with low-wattage, high-quality amps
Field Coil Motor – Superior control, lower distortion, increased transient speed
No Crossover Needed – Pure, phase-coherent signal path
Built for Audiophile Systems – Open baffle, back-loaded horn, or TL designs

Technical Specifications

Resonant Frequency (Fs)
28.3 Hz

Frequency Response
30 Hz – 20,000 Hz

Mechanical Resonance (Fo)
INFO?

Vas
211.5 L

Re (DC Resistance)
7.85 Ohms

Sensitivity (SPL)
96.7 dB (1W / 1m)

Qms
3.215

Qes
1.123

Qts
0.852

Sd (Cone Area)
881 cm²

Cms (Compliance)
169.543 µM/N

Mms (Moving Mass)
54.52 g

Mmd (Diaphragm Mass)
32.475 g

Rms (Mechanical Loss)
INFO ?

Le (Voice Coil Diameter)
38 mm Magnet Type

Nominal Impedance
8 Ohms

Max Power (Short Term)
80 W

Xmax
5 mm

Bl
5.828 T·m

Magnet Diameter / Material
120 mm / INFO?

Nominal Diameter
390 mm (15")

Installation Notes

Requires an external DC power supply for field coil excitation (included)
Performs best in high-efficiency enclosures: open baffle, horn, or TL
Designed for audiophile-grade systems — delivers unmatched tone, texture, and realism
Sold as a matched pair for stereo performance