Product Details:

• Nominal Diameter: 460 mm (18″)
• Impedance Options: 4 Ω & 8 Ω
• Program / Continuous Power Handling: approx. 1400 W (8 Ω model) 
• Frequency Range: 30 Hz – 1000 Hz 
• Sensitivity: 95.5 dB (1W/1m) 
• Voice Coil Diameter: 100 mm (4″) copper 
• Winding Depth / Gap Depth: 21 mm / 10.5 mm 
• Flux Density: 1.05 T 
• Woofer Cone Treatment: TWP (Waterproof Both Sides) 
• Suspension / Surround: Double silicone spider & triple-roll surround 
• Recommended Enclosure: 250 dm³ (≈8.83 ft³) tuned to ~29 Hz 
• Mounting Dimensions: Overall Ø 460 mm, Baffle Cut-out Ø 422 mm, Depth 197 mm (7.75″) 
• Net Weight: 10.2 kg (22.49 lb)