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LF18N405

WOOFER

 The LF18N405 is an extended low frequency with high power handling , designed to provide powerful and accurate bass frequencies with low distortion, low power compression and very high SPL. The LF18N405 uses a fibre loaded cone assembly along a large triple roll surround, this combination provides remarkable strength and control. The single spider system is specifically designed with a heavy cloth which ensures excellent control during large excursions. A fully optimised T-pole design generates the minimum amount of flux modulation. The Dual-forced air venting magnetic structure system provides a very efficient voice coil ventilation to minimize the power compression.

Applications
Part Number
  • • 11100022
Features
  • 4,0 - inch Inside/Outside copper voice coil
  • 3000 Watt continuous program power handling
  • 97 dB Sensitivity
  • 25Hz - 1kHz Frequency range
  • Hypervented magnetic structure for minimum power compression
  • Triple roll surround and exponential cone geometry
General Specifications
  • Nominal Diameter: 460/18 mm/inch
  • Rated Impedance: 8 Ω
  • Program Power: 3000 W AES
  • Power handling capacity: 1500 W AES
  • Sensitivity: 97 dB
  • Frequency Range: 25 Hz ÷ 1000 Hz
  • Effective Piston Diameter: 395/15.6 mm/inch
  • Max Excursion Before Damage (peak to peak): 58/2.28 mm/inch
  • Minimum Impedance: 6.0 Ω
  • Voice Coil Diameter: 100/4.0 mm/inch
  • Voice Coil Material: Copper
  • Voice Coil Winding Depth: 36/1.41 mm/inch
  • Number of layers: 2
  • Kind of layer: inside/ouside
  • Top Plate Thickness: 15/0.6 mm/inch
  • Cone Material: No pressed pulp
  • Cone Design: Curved
  • Surround Material: Polycotton
  • Surround Design: Triple roll
Thiele/Small Parameters
  • Resonance frequency: 30 Hz
  • DC resistance: 4.9Ω
  • Mechanical factor: 7.0
  • Electrical factor: 0.34
  • Total factor: 0.32
  • BL Factor: 26.5 T · m
  • Effective Moving Mass: 261 g
  • Equivalent Cas air load: 227 liters
  • Effettive piston area: 0.122
  • Max. linear excursion (mathematical): 14.2 mm
  • Voice - coil inductance @ 1kHz: 1.7 mH
  • Half-space efficiency: 1.70%
Mounting information
  • Overall Diameter: 465/18.3 mm/inch
  • Bolt Circle Diameter: 442-447/17.4-17.6 mm/inch
  • Bolt Hole Diameter: 6.5/0.25 mm/inch
  • Front Mount Baffle Cut-out: 424/16.7 mm/inch
  • Rear Mount Baffle Cut-out: 425/16.7 mm/inch
  • Depth: 190/7.48 mm/inch
  • Volume occupied by the driver: 5.5/0.19 liters/ft³
  • Net Weight: 8.8/19 kg/lbs
Shipping information
  • Shipping weight: 10/22 kg/lbs

The data are not binding; RCF reserves the right to modify the data at any time and without previous notice.

The data are not binding; RCF reserves the right to modify the data at any time and without previous notice.