Description
The RCF LF18N401 is a premium 18-inch neodymium woofer engineered for deep, controlled bass, exceptional sensitivity, and superior power handling. Designed for high-performance audio systems, it features a 4-inch copper voice coil with a dual spider structure, triple-roll surround, and dual-forced ventilation for minimal power compression. With 2400W program power and 98 dB sensitivity, it delivers impressive SPL output with precision and reliability.
Product Specifications:
Nominal Diameter: 18"
Rated Impedance: 8 ohm
Program Power: 2400 W
Power Handling (AES): 1200 W
Sensitivity: 98.0 dB
Frequency Range: 30 Hz – 1 kHz
Voice Coil & Motor
Voice Coil Diameter: 4"
Voice Coil Material: Copper
Coil Type: Inside/outside, 2 layers
Coil Length: 0.98"
Magnet Type: Neodymium
BL Factor: 27.80 T·m
Inductance (1 kHz): 2.50 mH
Mechanical
Cone: Straight fiber-loaded
Surround: Triple-roll polycotton
Max Excursion (Before Damage): 2.05"
Xmax (Linear Excursion): 9 mm
Spider: Dual silicone-damped
Thiele-Small Parameters
Resonance Frequency (Fs): 32 Hz
DC Resistance (Re): 5.10 ohm
Qms: 6.50
Qes: 0.27
Qts: 0.26
Mms: 201 g
Vas: 257 L
Sd: 0.120 m²
Efficiency (Half-space): 3.01%
Mounting Information
Overall Diameter: 18.31"
Baffle Cut-out (Front/Rear): 16.69"
Bolt Circle Diameter: 17.4–17.6"
Bolt Hole Diameter: 0.28"
Volume Occupied by Driver: 0.22 ft³
Depth (Height): 8.03"
Dimensions & Weight
Height: 8.03"
Diameter: 18.31"
Weight: 20.94 lbs
Shipping Info
Package (H x W x D): 10.24" x 20.47" x 19.69"
Shipping Weight: 25.13 lbs
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