Definimax 4018LF 18" Eminence Woofer 1200 RMS

Regular price $249.99 Sale


DEFINIMAX 4018LF  1200 Watts RMS   1400 Watts  Program
We have lots of these - get in touch!!!
We also have the 4015LF's 8 ohm at 700 Watts  RMS  ANd DEfinimax 4015ULF at 1200 Watts RMS
ASK any questions before you buy!
We have distributed Eminence for 20 years.
We have all the other major PRO Audio Speaker Brands and Models.
We sell to Dealers as well.
LOTS IN STOCK!!!!
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We also sell to Dealers

SPECIFICATIONS

 

 

Nominal Basket Diameter

 

 

18", 381mm

 

 

Nominal Impedance*

 

 

8 ohms

 

 

Power Rating**

 

 

Watts

 

 

1200W

 

 

Music Program

 

 

2400W

 

 

Resonance

 

 

42 Hz

 

 

Usable Frequency Range

 

 

35 Hz – 1.2 kHz

 

 

Sensitivity***

 

 

97 dB

 

 

Magnet Weight

 

 

109 oz.

 

 

Gap Height

 

 

0.37", 9.53mm

 

 

Voice Coil Diameter

 

 

4", 101.2mm

 

 

THIELE & SMALL PARAMETERS

 

 

Resonant Frequency (fs)

 

 

42Hz

 

 

DC Resistance (Re)

 

 

5.04

 

 

Coil Inductance (Le)

 

 

1.49mH

 

 

Mechanical Q (Qms)

 

 

6.73

 

 

Electromagnetic Q (Qes)

 

 

0.54

 

 

Total Q (Qts)

 

 

0.50

 

 

Compliance Equivalent Volume (Vas)

 

 

115.4 liters / 4.1 cu.ft.

 

 

Peak Diaphragm Displacement Volume (Vd)

 

 

786 cc

 

 

Mechanical Compliance of Suspension (Cms)

 

 

0.11mm/N

 

 

BL Product (BL)

 

 

18.4 T-M

 

 

Diaphragm Mass Inc. Airload (MMs)

 

 

139 grams

 

 

Efficiency Bandwidth Product (EBP)

 

 

77

 

 

Maximum Linear Excursion (Xmax)

 

 

 9 mm

 

 

Surface Area of Cone (Sd)

 

 

872.9 cm2

 

 

Maximum Mechanical Limit (Xlim)

 

 

15.5mm

 

 

MOUNTING INFORMATION

 

 

Recommended Enclosure Volume

 

 

Sealed

 

 

49 liters / 0.1.7-2.1 cu.ft.

 

 

Vented

 

 

82-181 liters / 2.9-6.4 cu.ft.

 

 

Driver Volume Displaced

 

 

253 cu.in. / 4.3 liters

 

 

Overall Diameter

 

 

15.21", 386mm

 

 

Baffle Hole Diameter

 

 

14.0", 355.6 mm

 

 

Front Sealing Gasket

 

 

Fitted as standard

 

 

Rear Sealing Gasket

 

 

Fitted as standard

 

 

Mounting Holes Diameter

 

 

0.28", 6.9mm

 

 

Mounting Holes B.C.D.

 

 

14.56", 369.8mm

 

 

Depth

 

 

6.56", 166 mm

 

 

Net Weight

 

 

23.7 lbs, 10.8 kg

 

 

Shipping Weight

 

 

26 lbs, 12 kgs

 

 

MATERIALS OF CONSTRUCTION

 

 

Coil Construction

 

 

Copper voice coil

 

 

Coil Former

 

 

Polyimide former

 

 

Magnet Composition

 

 

Ferrite magnet

 

 

Core Details

 

 

Undercut with Copper Shorting ring and core periphery ventilation

 

 

 

 

 

 

 

 

Basket Materials

 

 

Die-cast aluminum basket

 

 

Cone Composition

 

 

Paper cone

 

 

Cone Edge Composition

 

 

Cloth cone edge

 

 

Dust Cap Composition

 

 

Solid composition paper dust cap