RCF LF18N405 18" Driver Woofer 3000W Precison Transducer

Description

4,0 - inch Inside/Outside copper voice coil
3000 Watt continuous program power handling
97.5 dB Sensitivity
25Hz - 1kHz Frequency range
Hypervented magnetic structure for minimum power compression
Triple roll surround and exponential cone geometry
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.

Nominal Diameter
18 inch / 457 mm
Rated Impedance
8 ohm
Program Power (watt)
3000 W
Power handling capacity
1500 W
Sensitivity
97.0 dB
Frequency range
30 - 1000 Hz
Effective piston diameter
395 mm / 15.55 inch
Max. Excursion Before Damage
58 mm / 2.28 inch
Minimum Impedance (ohm)
6.0 ohm
Voice Coil Diameter
4.0 inch / 102 mm
Voice Coil Winding Material
Copper
Voice Coil Length
36 mm / 1.42 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
Hypervented magnetic structure
Yes
Spider
01

Overall diameter
465 mm / 18.31 inches
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 the driver
5.5 liters / 0.22 ft3