PRECISION TRANSDUCERS

LF18N405

WOOFER
  • 4,0 - inch Inside/Outside copper voice coil
  • 3000 Watt continuous program power handling
  • 97.5 dB Sensitivity
  • 25Hz - 1kHz Frequency range
Where to buy
Features Specifications Downloads
Where to buy
Features
  • 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.

Part number:

11100022
LF18N405
8ohm

Specifications
General specifications
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 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 Design
Triple roll
Hypervented magnetic structure
Yes
Thiele - small parameters
Resonance frequency (Fs)
30 Hz
DC resistance (Re) (ohm)
4.90 ohm
Mechanical factor
7.00 Qms
Electrical factor
0.34 Qes
Total factor
0.32 Qts
Bl factor (Bl) (T x m)
26.50 T x m
Effective moving mass (Mms)
261.0 g
Equivalent Cas air loaded (Vas)
227.0 liters
Effective piston area (Sd)
0.120 m2
Max. linear excursion (Xmax)
14 mm
Voice coil inductance @ 1kHz (Le1k)
1.70 mH
Half-space efficency (Eff)
1.70%
Mounting information
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
Standard compliance
Safety agency
CE compliant
Size
Height
208 mm / 8.19 inches
Diameter
465 mm / 18.31 inches
Weight
8.8 kg / 19.4 lbs
Shipping information
Package Height
255 mm / 10.04 inches
Package Width
495 mm / 19.49 inches
Package Depth
525 mm / 20.67 inches
Package Weight
10 kg / 22.05 lbs
Downloads
SPECSHEETS
SPECSHEET - ENG
PDF
532 KB
22-01-2024
DRAWINGS
LINE ART 2D
PDF
131 KB
21-03-2018