PRECISION TRANSDUCERS

LF18X401

WOOFER
  • 4-inch, fiberglass inside/outside copper voice coil
  • 3000W continuous program power handling
  • 97.5 dB Sensitivity
  • 25 Hz – 1 kHz Frequency range
Where to buy
Features Specifications Downloads
Where to buy
Features
  • 4-inch, fiberglass inside/outside copper voice coil
  • 3000W continuous program power handling
  • 97.5 dB Sensitivity
  • 25 Hz – 1 kHz Frequency range
  • Dual Forced Hyperventing System
  • Dual spider design with silicon based dampening control
  • Triple-roll surround and corrugated straight cone geometry

Very linear frequency response characteristics, extreme high power handling while generating the lowest harmonic distortion of any comparable 18-inch transducer within its application range. The LF18X401 uses a fibre loaded cone assembly along with a high excursion triple roll surround. This combination provides remarkable strength and a peak to peak maximum excursion of 50 mm. The new dual forced hyper-venting system guarantee a very efficient voice coil ventilation for minimum power compression and incredible power handling.

Part number:

11100089
LF18X401
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:
97.5 dB
Frequency range:
25 - 1000 Hz
Effective piston diameter:
395 mm / 15.55 inch
Max. Excursion Before Damage:
50 mm / 1.97 inch
Minimum Impedance (ohm):
6.5 ohm
Voice Coil Diameter:
4.0 inch / 102 mm
Voice Coil Winding Material:
Copper
Voice Coil Length:
30 mm / 1.18 inch
Number of layers:
2
Kind of layers:
inside/outside
Top Plate Thickness:
15 mm / 0.59 inch
Cone Design:
Straight
Surround Material:
Polycotton
Surround Design:
Triple roll
Magnets:
Ceramic
Dual-force air ventilation:
Yes
Spider:
Dual with silicon based damping control
Thiele - small parameters
Resonance frequency (Fs):
30 Hz
DC resistance (Re) (ohm):
5.40 ohm
Mechanical factor:
7.40 Qms
Electrical factor:
0.31 Qes
Total factor:
0.30 Qts
Bl factor (Bl) (T x m):
26.50 T x m
Effective moving mass (Mms):
215.0 g
Equivalent Cas air loaded (Vas):
274.0 liters
Effective piston area (Sd):
0.120 m2
Max. linear excursion (Xmax):
12 mm
Voice coil inductance @ 1kHz (Le1k):
0.83 mH
Half-space efficency (Eff):
2.30%
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:
6.5 liters / 0.26 ft3
Size
Height:
196 mm / 7.72 inches
Diameter:
465 mm / 18.31 inches
Weight:
12.5 kg / 27.56 lbs
Shipping information
Package Height:
254 mm / 10 inches
Package Width:
524 mm / 20.63 inches
Package Depth:
494 mm / 19.45 inches
Package Weight:
15 kg / 33.07 lbs
Downloads

RCF products are continually improved. All specifications are therefore subject to change without notice.