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Eminence Kilomax Pro-18A 18" Cast Frame Driver

Eminence SpeakerPart # 290-434
Model: Kilomax Pro-18A
Eminence's Kilomax Pro-18A 18" speaker is designed to provide excellent performance in professional audio subwoofer and woofer applications in larger vented or sealed enclosures.

Key Features

  • Kapton coil former
  • Copper voice coil
  • Extended core with Core Periphery Ventilation
  • Die-cast aluminum basket
  • Aluminum heatsink
  • Paper cone with cloth cone edge
  • Porous cloth top spider
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Estimated back in stock 8/29/2025
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Overview

Eminence Kilomax Pro-18A 18" Cast Frame Driver

Eminence's Kilomax Pro-18A 18" speaker is designed to provide excellent performance in professional audio subwoofer and woofer applications in larger vented or sealed enclosures. The Kilomax Pro-18A's unique axially-located heat sink removes excessive thermal buildup from the critical voice coil area, which contributes to the driver's 1,250 watts RMS power handling capacity. Not recommended for horn loading or scoops. Made in the USA. 7-year manufacturer's warranty!

Product Details

BrandEminence Speaker
ModelKilomax Pro-18A
Part Number290-434
UPC876358000517
Unit of MeasureEach
Weight30.25

Product Specifications

Nominal Diameter18"
Power Handling (RMS)1250 Watts
Power Handling (MAX)2500 Watts
Impedance8Ω
Frequency Response33 to 300Hz
Sensitivity95.8dB 2.83V/1m
Voice Coil Diameter4"

Thiele-Small Parameters

Resonant Frequency (Fs)32Hz
DC Resistance (Re)5.07Ω
Voice Coil Inductance (Le)1.59mH
Mechanical Q (Qms)10.15
Electromagnetic Q (Qes)0.49
Total Q (Qts)0.47
Compliance Equivalent Volume (Vas)11.71ft³
Mechanical Compliance of Suspension (Cms)0.18mm/N
BL Product (BL)17.2T·m
Diaphragm Mass Inc. Airload (Mms)143g
Maximum Linear Excursion (Xmax)10mm
Surface Area of Cone (Sd)1159cm²

Materials of Construction

Cone MaterialPaper
Surround MaterialCloth
Voice Coil Wire MaterialCopper
Voice Coil FormerKapton® / Polyimide
Basket / Frame MaterialCast Aluminum
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter18"
Baffle Cutout Diameter16.56"
Depth8.15"
# Mounting Holes8

Parts Express Staff Recommended Enclosure Volume

Sealed Volume5ft³
Sealed F355.5Hz
Vented Volume8ft³
Vented F336.8Hz

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