Garage
Shop

See all parts that fit your 2002 E Series

Infinity Kappa 123WDSSI (INFSUBKA123WDSSIAM)

1500W Peak (500W RMS) 12” Kappa Series Selectable 2 or 4-ohm Subwoofer

Infinity
Shop all Infinity
highlight-star-icon

• Peak Power: 1500 watts
• RMS Power: 500 watts
• Impedance: 2 or 4 ohm
• Glass Fiber Cone
• Rubber Surround
• Mount depth: 7"
• Sensitivity: 92 dB

Learn more about the infsubka123wdssiam

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
70-1771 main

Metra 70-1771

Install a New Car Stereo in select 1998-2011 vehicles from Ford, Mazda, Mercury

51
95-5817 main

Metra 95-5817 Dash Kit

Install a new Double-DIN car stereo in select 1995-2011 vehicles from Ford, Mercury, Mazda

45
-21.92%

$17.95

List price $22.99

FD1423B main

Scosche FD1423B / FD1423 Dash Kit

Install a new Single-DIN car stereo in select 1995-2011 vehicles from Ford, Mercury, Lincoln (Black)

25
-18.81%

$12.95

List price $15.95

ZS525CX main

Hifonics ZS525CX

400W Peak (60W RMS) 5.25” Zeus Series 2-way 4-ohm Coaxial Car Speakers

7
-31.05%

$19.99

List price $28.99

XED525C main

Cerwin-Vega XED525C

500W Peak (60W RMS) 5.25” XED Series 2-Way 4-ohm Component Speaker System

8
-16.67%

$59.99

List price $71.99

XED52 main

Cerwin-Vega XED52

550W Peak (60W RMS) 5.25" XED Series 2-Way Coaxial 4-ohm Speakers

7
-16.67%

$44.99

List price $53.99

CV62BM main

Cerwin-Vega CV62BM

6.2” Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth

4
-16.67%

$169.99

List price $203.99

Description


Infinity brand icon

Authorized dealer


Infinity Kappa 123WDSSI

Take Infinity car audio for a ride. Innovative materials and breakthrough engineering have always placed Infinity products in front of the competition. You can expect extreme output from Kappa subs, so be prepared for accuracy and detail that will simply blow you away. The Kappa Series subwoofers feature SSI (Selectable Smart Impedance), a HARMAN-exclusive impedance selector that lets you choose a 2- or 4-ohm impedance at the flip of a switch. Our proprietary aero-cooling design keeps the voice coil cool while optimizing power handling and long-term reliability. Finally, the acoustically damped glass-fiber cones have been engineered to minimize distortion and unwanted artifacts. More performance and flexibility: you get both when you step up to an Infinity Kappa subwoofer.


Product Details:

  • 12" Single 2 or 4 ohm Kappa Series Subwoofer
  • Power Handling:
    • Peak: 1500 watts
    • RMS: 500 watts
  • Glass Fiber Cone
  • Rubber Surround
  • Aero-cooling oversized voice coil design
  • Premium integrated push terminals
  • Terminals accept up to 8-gauge speaker wire
  • 2" High Temperature Voice coil
  • 10.25 mm Xmax
  • Frequency Response: 25 - 175 Hz
  • Smart Selectable Impedance: 2 or 4 ohm
  • Resonance Frequency (Fs): 34.2 Hz
  • Sensitivity: 92 dB
  • Recommended sealed box volume: 1.3 cubic feet
  • Recommended ported box volume: 2.5 cubic feet
  • Top-mount depth: 7"
  • Cutout diameter: 11-1/8"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Infinity Kappa 123WDSSI (INFSUBKA123WDSSIAM) Subwoofer

Mono Amp

Wiring Guide to Wire 2 Infinity Kappa 123WDSSI (INFSUBKA123WDSSIAM) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 3 Infinity Kappa 123WDSSI (INFSUBKA123WDSSIAM) Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 Infinity Kappa 123WDSSI (INFSUBKA123WDSSIAM) Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp


Loading...
DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

3
-19.05%

$339.99

List price $420.00

Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

124
-33.36%

$79.96

List price $119.99

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
Limited time!
DMH-W3050NEX main

Pioneer DMH-W3050NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)

1
-24.20%

$469.99

List price $620.00

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

12
-9.16%

$109.00

List price $119.99

XED62 main

Cerwin-Vega XED62

600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers

15
-16.67%

$49.99

List price $59.99

PNW-65CS2 main

AudioControl PNW-65CS2

250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers

4
-5.90%

$319.00

List price $339.00


Best selling similar products

Marine Club 12 small

JBL CB122 Club Marine 12

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Polypropylene Cone
• Rubber Surround
• Impedance: Single 4 ohm
• Mount depth: 7-13/16"
• Sensitivity: 89 dB

(1)

$119.95

List price $379.95

VCW124v3 small

NVX VCW124 Version 3 (VCW124v3)

• Peak Power: 2400 watts
• RMS Power: 1200 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll Foam Surround with black nylon stitching
• Mount depth: 7.02"
• Sensitivity: 85 dB (1W/1m)

(132)

$239.99

List price $287.99

SQW124 small

NVX SQW124

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 3.51"
• Sensitivity: 84 dB

$299.99

List price $359.99

12W6v3-D4 small

JL Audio 12W6v3-D4

• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 7.52"
• Sensitivity: 85.4 dB

(25)

$949.99

List price $949.99

CWRT124 small

Kicker CWRT124 (48CWRT124)

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Dual 4 ohm
• UV-Treated Polypropylene Cone
• UV-resistant Santoprene Surround
• Mount depth: 3-3/4"
• Sensitivity: 85.5 dB

(3)

$199.96

List price $279.99

VCW122v3 small

NVX VCW122 Version 3 (VCW122v3)

• Peak Power: 2400 watts
• RMS Power: 1200 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll Foam Surround with black nylon stitching
• Mount depth: 7.02"
• Sensitivity: 85 dB (1W/1m)

(95)

$239.99

List price $287.99

SRX1240 small

Memphis SRX1240

• Peak Power: 500 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 4.92"
• Sensitivity: 85 dB

$79.99

List price $139.95

Stage 122 small

JBL Stage 122 (JBLSUBST122AM)

• Peak Power: 1000 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 6"
• Sensitivity: 91 dB

$109.95

List price $129.95

YSW122 small

NVX YSW122

• Peak Power: 1600 watts
• RMS Power: 800 watts
• Impedance: Dual 2 ohm
• Enhanced Pressed Paper Cone
• High Roll Foam Surround
• Mount depth: 6.5"
• Sensitivity: 85 dB

(3)

$149.99

List price $227.99

12TW3-D4 small

JL Audio 12TW3-D4

• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Mica Injected Polypropylene - MIPP Cone
• Rubber Surround
• Mount depth: 3.5"
• Sensitivity: 84.11 dB

(20)

$569.99

List price $569.99

Specifications & Details


Subwoofer Specifications
Series
Kappa Series
Subwoofer Size
12"
Peak Power Handling
1500 watts
RMS Power Handling
500 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
2 or 4 ohm
Voice Coil Diameter
2"
Frequency Response
25 - 175 Hz
Sensitivity
92 dB
Xmax (millimeters)
10.25 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Glass Fiber
Woofer Surround
Rubber
Magnet Structure
Single Stacked
Subwoofer Grille
No
Re-Cone Kit Available
No
CTA-2031 Compliant
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
1.3 cubic feet
Minimum Ported Box Volume
2.5 cubic feet
Top-Mount Depth (Mounting Depth)
7"
Cutout Diameter
11-1/8"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
34.2 Hz
Equivalent Compliance (Vas)
58.7 liters
Total Speaker Q Value (Qts)
0.778
What is in the box?
Paperwork
User manual
WITB: Subwoofers
Subwoofer
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

Kappa 123WDSSI-2

Weight:

16.87lbs

Internal SKU:

infsubka123wdssiam

Internal Product ID:

183189

Customer Ratings & Reviews


Infinity Kappa 123WDSSI (INFSUBKA123WDSSIAM) thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

Sort by:

Loading...

great quality

Easy to install and the changeable impedance is a great feature. Works great with Infinity's kappa One 6 amplifier

By Cole on July 30, 2025 Checkmark Icon Verified purchase

1 found this helpful


By Eliseo on June 23, 2026 Checkmark Icon Verified purchase
2012 Dodge Journey




KD-AR870 small

JVC KD-AR870

Arsenal Series CD/MP3/WMA Receiver with Remote and USB Front Input

(4)

$159.99

List price $299.99

PMSSR small

Scosche PMSSR boomCAN (Silver)

Portable Media Speaker for iPod, iPhone, iPad, Android, Smartphones, & Other Media Devices

$12.99

List price $24.99

KWE-610A small

Alpine KWE-610A

6 Meter Optical Fiber Cable to Connect Alpine Head Units to PXA-H701 Multi-Channel Audio Processor

(1)

$129.99

List price $199.99

MCBK634B.6 small

Boss MCBK634B.6

Single DIN Digital Audio Marine Receiver with Bluetooth and 6.5" 2 Way Full Range 4-ohm Marine Speakers Package

$164.99

List price $209.99

95-7357HG small

Metra 95-7357HG Dash Kit

Install a new Double-DIN car stereo in select 2013-2017 Elantra GT (High Gloss Black)

$17.99

List price $39.99

BRT438 small

Belva BRT438

4 Gauge Ring Terminals, 3/8" Opening with Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

(8)

$2.99

List price $9.99

C2R-CHY4 small

PAC C2R-CHY4 Wiring Interface

Install a new car stereo and retain factory amplifier in select 2004-2018 vehicles from Dodge, Jeep, Chrysler

(26)

$99.99

List price $299.00

S-8-50 small

Absolute S-8-50 (SW-8-50)

50 ft. of 8 Gauge Speaker Wire (True 12 Gauge)

(1)

$29.99

List price $39.99

07C108 small

Kicker C108 (07C108)

10" Single 8 ohm Comp Series Car Subwoofer

(9)

$47.95

List price $119.95

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2002 Ford E Series

2011 Ram 3500

1982 Ford E Series

2009 Dodge Durango

2016 Ford Edge

2000 Buick Century

2007 Mazda 3

2008 Audi A4

2018 Audi A3

2002 Lexus LS430

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.