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RCF 18" Woofer Pro Raw Transducer For Bass Enclosures | LF18N451

RCF 18" Woofer Pro Raw Transducer For Bass Enclosures | LF18N451

SoundPro Item: 54151 | Part Number: LF18N451

Regular price $839.00
Regular price $1,199.00 Sale price $839.00
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MSRP: $1,199.00 | MAP: $839.00

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  • Fiberglass Inside/Outside Voice Coil Former Maximizes Thermal Transfer And Gap Efficiency
  • Forced Air Ventilation In The Magnetic Structure Reduces Power Compression Under Load
  • Polycotton Surround With Multi-Roll Geometry Supports Controlled High-Excursion Operation
  • Silicone-Based Spider Damping Maintains Accurate Cone Control During Large Excursions
  • Ceramic And Neodymium Magnet Options Available To Suit Weight And Efficiency Requirements
  • CE Compliant Construction Meets International Safety Standards For Installed And Touring Use
  • Suited For Bass Reflex And Bandpass Cabinet Alignments Across Live And Installed Audio Applications

Speaker builders, system integrators, and touring sound companies working on custom subwoofer enclosures need raw transducers that deliver consistent low-frequency output without compressing under sustained high-power conditions. The RCF 18" woofer family addresses exactly that requirement. Each driver in the range is built around a 4-inch (or larger) fiberglass voice coil former wound with copper wire in an inside/outside configuration, a construction that increases conductor surface area and transfers heat away from the gap more efficiently than single-sided winding. Forced air ventilation in the magnetic structure works alongside this design to further reduce power compression during long sets or continuous playback in installed sound environments.

The family spans multiple magnet and suspension configurations, giving designers the flexibility to match driver parameters precisely to their enclosure topology. Variants are available with ceramic or neodymium magnet systems to suit weight budgets and efficiency targets. Polycotton triple-roll and M-roll surrounds, combined with dual or single spider systems using silicone-based damping, provide the excursion control needed for reliable low-frequency extension in both bass reflex and bandpass alignments. CE compliance across the range confirms each driver meets European safety standards, a practical requirement for system integrators supplying installed or touring rigs internationally.

Where many comparable 18-inch transducers trade output linearity for raw sensitivity numbers, this family prioritizes amplitude control and thermal management. The result is a driver that holds its rated output level across a full performance day rather than sagging as the voice coil heats. For production companies building flight-cased subwoofer arrays, installation contractors fitting under-stage or delay-fill bass enclosures, or OEM builders sourcing components for branded cabinets, the RCF 18" woofer range offers a technically grounded, field-proven platform.

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Specifications

Certifications
Safety Agency
CE Compliant
General Specifications
Nominal Diameter
18 inch / 457 mm
Rated Impedance
8 ohm
Minimum Impedance
6.3 ohm
Program Power
3000 W
Power Handling Capacity
1500 W
Sensitivity
97.5 dB
Frequency Range
30 - 1000 Hz
Effective Piston Diameter
395 mm / 15.55 inch
Max. Excursion Before Damage
60 mm / 2.36 inch
Voice Coil Diameter
4.5 inch / 114 mm
Voice Coil Winding Material
Copper
Voice Coil Length
26 mm / 1.02 inch
Number Of Layers
2
Kind Of Layers
Inside/Outside
Top Plate Thickness
15 mm / 0.59 inch
Cone Design
Curved
Surround Material
Polycotton
Surround Design
Triple Roll
Magnets
Neodymium
Dual-Force Air Ventilation
Yes
Spider
Dual With Silicon Based Damping Control
Thiele-Small Parameters
Resonance Frequency (Fs)
31 Hz
DC Resistance (Re)
5.00 ohm
Mechanical Factor (Qms)
6.00 Qms
Electrical Factor (Qes)
0.25 Qes
Total Factor (Qts)
0.24 Qts
Bl Factor (Bl)
30.20 T x m
Effective Moving Mass (Mms)
235.0 g
Equivalent Air Volume (Vas)
245.0 liters
Effective Piston Area (Sd)
0.120 m2
Max. Linear Excursion (Xmax)
9 mm
Voice Coil Inductance @ 1kHz (Le1k)
2.60 mH
Half-Space Efficiency (Eff)
2.54%
Dimensions
Height
223 mm / 8.78 inch
Diameter
465 mm / 18.31 inch
Overall Diameter
465 mm / 18.31 inch
Bolt Circle Diameter
442-447 mm / 17.4-17.6 inch
Bolt Hole Diameter
7 mm / 0.28 inch
Front Mount Baffle Cut-Out
424 mm / 16.69 inch
Rear Mount Baffle Cut-Out
425 mm / 16.73 inch
Volume Occupied By Driver
5.5 liters / 0.22 ft3
Weight
Product Weight
10.5 kg / 23.15 lbs
Shipping
Package Height
240 mm / 9.45 inch
Package Width
510 mm / 20.08 inch
Package Depth
480 mm / 18.9 inch
Package Weight
12.5 kg / 27.56 lbs

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