Description
The RCF LF18N408 is a high-output 18-inch woofer engineered for deep, accurate bass and powerful SPL performance. Equipped with a 4-inch copper voice coil and neodymium magnet, it handles up to 3000W of continuous program power. The hypervented magnetic structure, aluminum demodulation rings, and curved cone design reduce power compression and distortion while enhancing transient response. Designed for subwoofer and high-end bass applications in touring systems or professional installs.
Product Specifications:
Nominal Diameter:18"
Rated Impedance:8 ohm
Program Power:3000 W
Power Handling (AES):1500 W
Sensitivity:97.0 dB
Frequency Range:25 Hz – 1 kHz
Voice Coil & Motor
Voice Coil Diameter:4"
Voice Coil Material:Copper
Coil Type:Inside/outside, 2 layers
Coil Length:1.5"
Magnet Type:Neodymium
BL Factor:25.70 T·m
Inductance (1 kHz):1.56 mH
Demodulation Rings:2 (Aluminum)
Mechanical
Cone:Curved, fiber-loaded
Surround:Triple-roll polycotton
Max Excursion (Before Damage):2.28"
Xmax (Linear Excursion):0.59"
Spider:Single heavy-cloth spider
Thiele-Small Parameters
Resonance Frequency (Fs):30 Hz
DC Resistance (Re):4.30 ohm
Qms:3.60
Qes:0.36
Qts:0.33
Mms:284 g
Vas:193 L
Sd:0.122 m²
Efficiency (Half-space):1.57%
Mounting Information (Inches)
Overall Diameter:18.31"
Baffle Cut-out (Front):16.69"
Baffle Cut-out (Rear):16.73"
Bolt Hole Diameter:0.28"
Depth (Height):8.8"
Volume Occupied by Driver:0.22 ft³
Dimensions & Weight
Height:8.8"
Diameter:18.31"
Weight:19.84 lbs
Shipping Info
Package (H x W x D):10.63" x 20.47" x 19.49"
Shipping Weight:22.49 lbs
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