5 out of 5
Eminence Kappa Pro-12A 12" Cast Frame Driver
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Pricing Note
Product Description
Manufacturer Part Number: 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:
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!
Specification:
Manuals & Resources:
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
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!
Specification:
Product Details | |
|---|---|
| Brand | Eminence Speaker |
| Model | Kappa Pro-12A |
| Part Number | 290-424 |
| UPC | 876358000364 |
| Unit of Measure | Each |
| Weight | 17.71 |
Product Specifications | |
|---|---|
| Nominal Diameter | 12" |
| Power Handling (RMS) | 500 Watts |
| Power Handling (MAX) | 1000 Watts |
| Impedance | 8Ω |
| Frequency Response | 57 to 2,800Hz |
| Sensitivity | 97.1dB 2.83V/1m |
| Voice Coil Diameter | 3" |
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 Material | 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 | 12.38" |
| Baffle Cutout Diameter | 11.07" |
| Depth | 6.22" |
| # Mounting Holes | 8 |
Parts Express Staff Recommended Enclosure Volume | |
|---|---|
| Vented Volume | 1.13ft³ |
| Vented F3 | 60.2Hz |
Manuals & Resources:
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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Our staff are available to answer any questions you may have about this item
Customer Reviews
By Clyde
Date: November 14, 2025
Good value for a replacement.
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By Tim C
Date: October 13, 2025
Great speaker, used for a replacement on a blown subwoofer on B52 Pro PA system, sounds crisp and loud, hits harder then the OEM, had to modify the original speaker box a little to accommodate the larger magnet, solid product, solid brand.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Jon D Lippens
Date: October 13, 2025
This is a wonderful speaker and I would buy it all over again !
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By William H.
Date: July 22, 2023
Very please with mine kappa pro 15a. I brought two of them.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By tuck
Date: March 26, 2023
This thing is barking! I used this to replace an older damaged speaker in my older baltic birch 1 X 15 bass cabinet. This thing is a serious upgrade, it handles the power of my amplifier easily and is clear as a bell whether I am banging on the low B string on my 5 or soloing way up on the neck. I have been playing bass for over 40 years now and owned many speakers and cabinets and this speaker is one of the very best I have heard. Delivered on time with no hassles and easy to install
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By DAVID FORTUNATO
Date: February 05, 2023
This speaker has a lot of strength
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]