Description
Lii Audio Fast-15 (Pair – 2 Units)
The Lii Audio Fast-15 is a large-format 15-inch full-range driver designed for listeners who seek scale, dynamics, and effortless musical impact without sacrificing coherence and naturalness.
Developed according to the core philosophy of the Fast Series, the Fast-15 focuses on speed, efficiency, and direct musical communication. Its large diaphragm moves air with ease, delivering a powerful and authoritative low end while maintaining excellent control and responsiveness.
Sonically, the Fast-15 offers a highly engaging and open presentation. Bass is deep, solid, and full-bodied, providing a strong foundation for all types of music. The midrange is vivid and expressive, with outstanding vocal presence, while the treble remains clear, extended, and free from harshness.
Thanks to its high sensitivity and dynamic capability, the Fast-15 is an ideal partner for low- to medium-power tube amplifiers, single-ended designs, and minimalist high-efficiency systems. It excels in large enclosures, open-baffle configurations, and wide-range horn or hybrid projects.
Where smaller drivers may sound constrained at higher levels, the Fast-15 remains relaxed and composed, offering a sense of ease and realism that is difficult to achieve with compact formats. Music flows naturally, with scale and authority that closely resemble live performance.
In short, the Fast-15 is a no-nonsense, high-efficiency full-range driver built for serious systems: powerful, dynamic, and deeply musical. A perfect choice for audiophiles who value physical presence, emotional impact, and long-term listening pleasure.
A true large-format solution for uncompromising wide-range enthusiasts.
Technical Data:
- Nominal impedance Z: 8 Ohms
- Power:40-80W
- Frequency response:fo-18khz
- Fs: 36.5 Hz
- Sd: 245.703 cm³
- Qms: 7.583
- Qes: 0.324
- Qts: 0.528
- Magnet:Y47
- Mean Sound Pressure Level: 97.1dB (2.83V/1m)
- Weight: 12 KG
- Package dimension: 46*52*52 cm
- Paper Cone Material: Compound Pulp









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