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

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

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

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

Standard compliance

Safety agency

CE compliant

Size / Weight

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

SPECIFICATIONS

SPECSHEET - ENG

PDF

447 KB

19-08-2024

ACOUSTIC MEASUREMENTS

PDF

61 KB

11-07-2024

DRAWINGS

LINE ART 2D

PDF

369 KB

21-03-2018

Icone allineate