RCF LF18N401
18" Low Frequency Woofer

OUR PART #  LF18N401


RCF's LF18N401 offers linear frequency response characteristics and the highest power handling of any comparable 18" neodymium transducer, the lowest power compression.

The LF18N401 uses a fiber-loaded cone assembly along with a high excursion triple roll,constant geometry surround.

This combination provides remarkable strength venting system guarantee a very efficient voice coil ventilation for minimum power compression and higher power handling.

NOTE: Though two are shown above, only ONE woofer comes with purchase.

Features:

  • 4" fiberglass inside-outside copper voice coil
  • 2400W continuous program power handling
  • 98 dB Sensitivity
  • 30 Hz - 1 kHz Frequency range
  • Dual-forced air ventilation and 15mm top plate for minimum power compression
  • Dual spider design with silicon based dampening control
  • Triple-roll surround and corrugated straight cone geometry

General Specifications:

  • Nominal Diameter: 18" (460 mm)
  • Rated Impedance: 8 O
  • Program Power: 2400 W AES
  • Power handling capacity: 1200 W AES
  • Sensitivity: 98 dB
  • Frequency Range: 30 Hz ÷ 1000 Hz
  • Effective Piston Diameter: 15.6" (395 mm)
  • Max Excursion Before Damage (peak to peak): 2.1" (52 mm)
  • Minimum Impedance: 6.3 O
  • Voice Coil Diameter: 4" (100 mm)
  • Voice Coil Material: Copper
  • Voice Coil Winding Depth: 1" (25 mm)
  • Number of layers: 2
  • Kind of layer: inside / outside
  • Top Plate Thickness: 0.6" (15 mm)
  • Cone Material: No pressed pulp
  • Cone Design: Straight
  • Surround Material: Polycotton
  • Surround Design: Triple roll

Thiele/Small Parameters:

  • DC resistance: 5.1O
  • Mechanical factor: 6.5
  • Electrical factor: 0.27
  • Total factor: 0.26
  • BL Factor: 27.8 T · m
  • Effective Moving Mass: 201 g
  • Equivalent Cas air load: 257 liters
  • Effective piston area: 0.122 m²
  • Max. linear excursion (mathematical): 8.8 mm
  • Voice - coil inductance @ 1kHz: 2.5 mH
  • Half-space efficiency: 3.01%

Mounting information:

  • Overall Diameter: 18.3" (465 mm)
  • Bolt Circle Diameter: 17.4-17.6" (442-447 mm)
  • Bolt Hole Diameter: 0.3" (6.5 mm)
  • Front Mount Baffle Cut-out: 16.7" (424 mm)
  • Rear Mount Baffle Cut-out: 16.7" (424 mm)
  • Depth: 8.1" (205 mm)
  • Volume occupied by the driver: 0.19 ft³ (5.5 liters)
  • Net Weight: 20.2 lbs (9.1 kg)

Shipping weight: 21.8 lbs (9.8 kg)

RCF LF18N401
18" Low Frequency Woofer

OUR PART #  LF18N401

Product Information:

RCF's LF18N401 offers linear frequency response characteristics and the highest power handling of any comparable 18" neodymium transducer, the lowest power compression.

The LF18N401 uses a fiber-loaded cone assembly along with a high excursion triple roll,constant geometry surround.

This combination provides remarkable strength venting system guarantee a very efficient voice coil ventilation for minimum power compression and higher power handling.

NOTE: Though two are shown above, only ONE woofer comes with purchase.

Features:

  • 4" fiberglass inside-outside copper voice coil
  • 2400W continuous program power handling
  • 98 dB Sensitivity
  • 30 Hz - 1 kHz Frequency range
  • Dual-forced air ventilation and 15mm top plate for minimum power compression
  • Dual spider design with silicon based dampening control
  • Triple-roll surround and corrugated straight cone geometry

General Specifications:

  • Nominal Diameter: 18" (460 mm)
  • Rated Impedance: 8 O
  • Program Power: 2400 W AES
  • Power handling capacity: 1200 W AES
  • Sensitivity: 98 dB
  • Frequency Range: 30 Hz ÷ 1000 Hz
  • Effective Piston Diameter: 15.6" (395 mm)
  • Max Excursion Before Damage (peak to peak): 2.1" (52 mm)
  • Minimum Impedance: 6.3 O
  • Voice Coil Diameter: 4" (100 mm)
  • Voice Coil Material: Copper
  • Voice Coil Winding Depth: 1" (25 mm)
  • Number of layers: 2
  • Kind of layer: inside / outside
  • Top Plate Thickness: 0.6" (15 mm)
  • Cone Material: No pressed pulp
  • Cone Design: Straight
  • Surround Material: Polycotton
  • Surround Design: Triple roll

Thiele/Small Parameters:

  • DC resistance: 5.1O
  • Mechanical factor: 6.5
  • Electrical factor: 0.27
  • Total factor: 0.26
  • BL Factor: 27.8 T · m
  • Effective Moving Mass: 201 g
  • Equivalent Cas air load: 257 liters
  • Effective piston area: 0.122 m²
  • Max. linear excursion (mathematical): 8.8 mm
  • Voice - coil inductance @ 1kHz: 2.5 mH
  • Half-space efficiency: 3.01%

Mounting information:

  • Overall Diameter: 18.3" (465 mm)
  • Bolt Circle Diameter: 17.4-17.6" (442-447 mm)
  • Bolt Hole Diameter: 0.3" (6.5 mm)
  • Front Mount Baffle Cut-out: 16.7" (424 mm)
  • Rear Mount Baffle Cut-out: 16.7" (424 mm)
  • Depth: 8.1" (205 mm)
  • Volume occupied by the driver: 0.19 ft³ (5.5 liters)
  • Net Weight: 20.2 lbs (9.1 kg)

Shipping weight: 21.8 lbs (9.8 kg)

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