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Eminence Kappa Pro-12A 12" Cast Frame Driver

Eminence SpeakerPart # 290-424
Model: Kappa Pro-12A
The Eminence Kappa Pro-12A 12" speaker is recommended for professional audio as a sealed or vented midbass, or in a vented bass enclosure incorporating a high-pass filter.

Key Features

  • Kapton coil former
  • Polyamide-imide coated copper voice coil
  • Ferrite magnet
  • Vented and extended pole piece
  • Die-cast aluminum basket
  • Paper cone with cloth accordian surround
  • Solid composition paper dust cap
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Estimated back in stock 7/25/2025
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Overview

Eminence Kappa Pro-12A 12" Cast Frame Driver

The Eminence Kappa Pro-12A 12" speaker is recommended for professional audio as a sealed or vented midbass, or in a vented bass enclosure incorporating a high-pass filter. Also works great in horn-loaded designs, thanks to its high motor strength and excellent EBR (Equivalent Bandwidth Ratio). Made in the USA. 7-year manufacturer's warranty!

Product Details

BrandEminence Speaker
ModelKappa Pro-12A
Part Number290-424
UPC876358000364
Unit of MeasureEach
Weight17.71

Product Specifications

Nominal Diameter12"
Power Handling (RMS)500 Watts
Power Handling (MAX)1000 Watts
Impedance8Ω
Frequency Response57 to 2,800Hz
Sensitivity97.1dB 2.83V/1m
Voice Coil Diameter3"

Thiele-Small Parameters

Resonant Frequency (Fs)37Hz
DC Resistance (Re)5.46Ω
Voice Coil Inductance (Le)1.22mH
Mechanical Q (Qms)6.93
Electromagnetic Q (Qes)0.25
Total Q (Qts)0.24
Compliance Equivalent Volume (Vas)4.27ft³
Mechanical Compliance of Suspension (Cms)0.32mm/N
BL Product (BL)17.3T·m
Diaphragm Mass Inc. Airload (Mms)59g
Maximum Linear Excursion (Xmax)4.8mm
Surface Area of Cone (Sd)519.5cm²

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 Diameter12.38"
Baffle Cutout Diameter11.07"
Depth6.22"
# Mounting Holes8

Parts Express Staff Recommended Enclosure Volume

Vented Volume1.13ft³
Vented F360.2Hz

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