LEAN AUDIO No.1 for PA Loudspeakers, Guitar Speakers, Bass Guitar Speakers & HI FI speakers

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RCF LF18G400 18" 1000 Watts 8ohm Ferrite loudspeaker

£278.53

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RCF LF18G400 1000W AES 18" Driver 8 Ohm

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.

Main 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 ohm
Program Power: 2000 W AES
Power Handling Capacity: 1000 W AES
Sensitivity: 97.5 dB
Frequency Range: 25 Hz / 1000Hz
Effective Piston Diameter: 395 / 15.6 mm/inch
Max Excursion Before Damage (peak to peak): 50 / 2.0 mm/inch
Minimum Impedance: 6 ohm
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: 5.1 ohm
Mechanical Factor: 4.6
Electrical Factor: 0.29
Total Factor: 0.27
BL Factor: 24.2 T . m
Effective Moving Mass: 190g
Equialent Cas air load: 360 liters
Effective Piston Area: 0.122 m2
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 WEIGHT

Shipping Weight: 14.3 / 31.5 kg/lbs


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