CLEARANCE Eminence Definimax 4018LF 18" Speaker Driver

Name: Eminence Definimax 4018LF 18" Speaker Driver
Brand: Eminence Speaker
SKU: 290-579
Price: 329.99 USD
Availability: OutOfStock
Rating: 5 (3 reviews)

Eminence SpeakerPart # 290-579

Model: Definimax 4018LF

Read 3 Reviews | 5 Questions, 13 Answers or

The Eminence Definimax 4018LF 18" driver is recommended for professional audio and bass as a low distortion subwoofer in single or multi-driver speaker designs.

Key Features

Copper voice coil with Polyimide former
Ferrite magnet
Undercut pole piece with copper shorting ring and Core Periphery Ventilation
Die-cast aluminum basket
Acrylic wetlook paper cone and dust cap
Cloth cone edge

Product Details

Brand

Eminence Speaker

Model

Definimax 4018LF

Part Number

290-579

UPC

876358000579

Unit of Measure

Each

Weight

Product Specifications

Nominal Diameter

18"

Power Handling (RMS)

1200 Watts

Power Handling (MAX)

2400 Watts

Impedance

8Ω

Frequency Response

39 to 1,200Hz

Sensitivity

94.9dB 2.83V/1m

Voice Coil Diameter

Thiele-Small Parameters

Resonant Frequency (Fs)

30Hz

DC Resistance (Re)

6.1Ω

Voice Coil Inductance (Le)

4.54mH

Mechanical Q (Qms)

11.95

Electromagnetic Q (Qes)

0.35

Total Q (Qts)

0.34

Compliance Equivalent Volume (Vas)

9ft³

Mechanical Compliance of Suspension (Cms)

0.13mm/N

BL Product (BL)

26.75T·m

Diaphragm Mass Inc. Airload (Mms)

217g

Maximum Linear Excursion (Xmax)

8.57mm

Surface Area of Cone (Sd)

1188cm²

Materials of Construction

Cone Material

Coated Paper

Surround Material

Cloth

Voice Coil Wire Material

Copper

Voice Coil Former

Kapton® / Polyimide

Basket / Frame Material

Cast Aluminum

Magnet Material

Ferrite

Mounting Information

Overall Outside Diameter

18"

Baffle Cutout Diameter

16.57"

Depth

8.13"

# Mounting Holes

Parts Express Staff Recommended Enclosure Volume

Sealed Volume

2.9ft³

Sealed F3

82Hz

Vented Volume

5ft³

Vented F3

40Hz

CLEARANCE Eminence Definimax 4018LF 18" Speaker Driver

Key Features

Overview