LF18G400

WOOFER

The LF18G400 is a 18-inch woofer with linear frequency response cheracteristics and very high power handling.

The LF18G400 uses a fibre loaded cone assembly along with a high excursion triple roll, constant geometry surround.
This combination provides remarkable strength and peak to peak maximum excursion of 50mm.
Special features of this 18" are the unique T-pole, curved against voice coil over-driving and 14mm top plate for best control and power handling.

Applications
  • • The LF18G400 is ideal for use in applications where incredible power handling, long excursion and perfect control is required.
  • • Ideal for high quality professional bass reflex and bass-horn system.
  • • The robust machanical design and optimised weight of the device make it desiderable for use in fixed installation or portable professional loudspeaker system.
Part Number
  • • 11185008
Features
  • 4-inch, fiberglass inside/outside copper voice coil
  • 2000W continuous program power handling
  • 97.5 dB Sensitivity
  • 25 Hz – 1 kHz Frequency range
  • T-pole, curved on top. 14mm 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: 460 / 18 mm/inch
  • Rated Impedance: 8 Ω
  • Program Power: 2000 W AES
  • Power handling capacity: 1000 W AES
  • Sensitivity: 97.5 dB
  • Frequency Range: 25 Hz ÷ 1000 Hz
  • Effective Piston Diameter: 395 / 15.6 mm/inch
  • Max Excursion Before Damage (peak to peak): 50 / 2.0 mm/inch
  • Minimum Impedance: 6.0 Ω
  • Voice Coil Diameter: 100 / 4 mm/inch
  • Voice Coil Material: Copper
  • Voice Coil Winding Depth: 25 / 1.0 mm/inch
  • Number of layers: 2
  • Kind of layer: Inside / outside
  • Top Plate Thickness: 14 / 0.55 mm/inch
  • Cone Material: No pressed pulp
  • Cone Design: Straight
  • Surround Material: Polycotton
  • Surround Design: Triple roll
Thiele/Small Parameters
  • DC resistance: 5.1Ω
  • Mechanical factor: 4.6
  • Electrical factor: 0.29
  • Total factor: 0.27
  • BL Factor: 24.2 T · m
  • Effective Moving Mass: 190 g
  • Equivalent Cas air load: 360 liters
  • Effettive piston area: 0.122
  • Max. linear excursion (mathematical): 9.0 mm
  • Voice - coil inductance @ 1kHz: 2.5 mH
  • Half-space efficiency: 2.63%
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 / 0.3 mm/inch
  • Front Mount Baffle Cut-out: 424 / 16.7 mm/inch
  • Rear Mount Baffle Cut-out: 424 / 16.7 mm/inch
  • Depth: 210 / 8.3 mm/inch
  • Volume occupied by the driver: 7.0 / 0.25 liters/ft³
  • Net Weight: 13.3 / 29.3 kg/lbs
Shipping information
  • Shipping weight: 14.3 / 31.5 kg/lbs