Eighteen Sound 12LW1400-8 — 12" Ferrite Woofer
The Eighteen Sound 12LW1400-8 is a professional 12" ferrite woofer developed for high-power applications in bass-reflex cabinets. It combines high sensitivity, robust power handling and long linear excursion. The design with a 100 mm voice coil, powerful ferrite magnet and weather-protected cone provides reliable operation even under continuous load. The element is optimized for sub-bass and mid-bass applications where both SPL and endurance are crucial.
Technical data
- Size: 12" (310 mm outer diameter, 288 mm recessed diameter, 145 mm depth)
- Impedance: 8 ohms
- Sensitivity: 95 dB (1 W / 1 m)
- Rated power: 700 W AES, 1400 W program
- Frequency range: 45–2000 Hz
- Voice coil: 100 mm copper, ISV technology
- Magnet: Ferrite
- Weight: ~10.0 kg
Thiele/Small parameters
Fs: 45 Hz
Qty: 0.28
Qes: 0.30
Qms: 6.0
Vase: 70 L
Sd: 530 cm²
Weight: 90 g
BL: 22 T·m
Xmax: ±9 mm
Efficiency: 3.2 %
Recommended use
- High-power bass reflex cabinet (50–90 L, tuned to approx. 45–55 Hz)
- Sub-bass and mid-bass applications in PA systems
- Crossover guidelines: HP 40–50 Hz, LP up to 1.5–2 kHz
- Installations where robust ferrite construction and long stroke are preferred
Item no.
- Manufacturer: Eighteen Sound
- Model: 12LW1400-8
- Category: Cone driver / Woofer
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