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PRECISION TRANSDUCERS

LF18G400

WOOFER

4-inch, fiberglass inside/outside copper voice coil
2000W continuous program power handling
97.5 dB Sensitivity
25 Hz – 1 kHz Frequency range

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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

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.

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Part number:

11185008
LF18G400
8ohm

Specifications

General specifications

Nominal Diameter

18 inch / 457 mm

Rated Impedance

8 ohm

Program Power (watt)

2000 W

Power handling capacity

1000 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)

6.0 ohm

Voice Coil Diameter

4.0 inch / 102 mm

Voice Coil Winding Material

Copper

Voice Coil Length

25 mm / 0.98 inch

Number of layers

Kind of layers

inside/outside

Top Plate Thickness

14 mm / 0.55 inch

Cone Design

Straight

Surround Material

Polycotton

Surround Design

Triple roll

Magnets

Ceramic

Spider

Thiele - small parameters

Resonance frequency (Fs)

28 Hz

DC resistance (Re) (ohm)

5.10 ohm

Mechanical factor

4.60 Qms

Electrical factor

0.29 Qes

Total factor

0.27 Qts

Bl factor (Bl) (T x m)

24.20 T x m

Effective moving mass (Mms)

190.0 g

Equivalent Cas air loaded (Vas)

360.0 liters

Effective piston area (Sd)

0.120 m2

Max. linear excursion (Xmax)

9 mm

Voice coil inductance @ 1kHz (Le1k)

1.20 mH

Half-space efficency (Eff)

2.63%

Mounting information

Overall diameter

465 mm / 18.31 inches

Bolt circle diameter

442-447 mm / 17.4-17.6 inch

Bolt hole diameter

424 mm / 16.69 inch

Front mount baffle cut-out

424 mm / 16.69 inch

Rear mount baffle cut-out

424 mm / 16.69 inch

Volume occupied by the driver

7 liters / 0.28 ft3

Standard compliance

Safety agency

CE compliant

Physical specifications

Color

Black

Size / Weight

Height

228 mm / 8.98 inches

Diameter

465 mm / 18.31 inches

Weight

13.3 kg / 29.32 lbs

Shipping information

Package Height

270 mm / 10.63 inches

Package Width

515 mm / 20.28 inches

Package Depth

505 mm / 19.88 inches

Package Weight

15 kg / 33.07 lbs

Downloads

SPECIFICATIONS

SPECSHEET - ENG

PDF

399 KB

19-08-2024

ACOUSTIC MEASUREMENTS

PDF

63 KB

11-07-2024

DRAWINGS

LINE ART 2D

PDF

268 KB

21-03-2018

Icone allineate