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.

What's
Established 1991 • 7 Locations • Authorized Dealer • Fast Shipping

Infinity KAPPA123WDSSI 12" (300mm) high-performance car audio subwoofer - Used, Open Box

Review details, highlights, and description below. Questions? Use eBay messages for the fastest support.

Infinity KAPPA123WDSSI 12
Item Details
Condition USED
Brand Infinity
Weight 10.0000
UPC 050667376819050667376819
Highlights
Most car audio system designs call for 2- or 4-ohm impedance. Kappa Series subwoofers put the choice in your hands.
The Kappa Series voice coil employs a two-sided, ducted airflow design that cools the voice coil, increases power handling and improves reliability.
Kappa subwoofer cones incorporate glass-fibers for exceptional accuracy and detail. Inherently non-resonant, the glass-fiber cones eliminate distortion so your music—and nothing but your music—comes through loud and clear.
The terminals on the Kappa subwoofers accommodate up to 8-guage wire (8.37mm 2 cross section), which transfers low-resistance, low-loss power to the woofer, even over long wire runs.
Fast handling Most orders ship within 24 hours. Shipping details and estimates are shown in the eBay shipping section for this listing.
Real support Compatibility questions are welcome. Message us through eBay and include your application details for the quickest help.
Authorized dealer We stand behind what we sell and package carefully to help your order arrive as expected.
Description
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.

What's In The Box
1 x Subwoofer
1 x Owner’s manual
1 x Screw bag x1

Specifications:
12" (300mm) high-performance car audio subwoofer
Power Handling: 500W RMS, 1500W peak
Sensitivity (@ 2.83V): 92dB
Frequency Response: 25Hz – 175Hz
Voice Coil Diameter: 2 in. (50mm)
Impedance: 2 or 4 ohms
Cutout Diameter: 11-1/8" (285mm)
Mounting Depth: 7" (178mm)
About Creative Audio
Creative Audio opened in 1991 and has grown into a multi-location specialty retailer with seven stores across Missouri and Arkansas. We support enthusiasts, installers, and everyday customers with product knowledge, practical guidance, and a service-first approach that extends beyond the checkout.

We are deeply invested in performance-focused audio across categories: car audio, marine, powersports, and home audio. That means more than selling gear — it means understanding system matching, power requirements, signal integration, real-world installation considerations, and the small details that determine whether a system performs the way it should.

Our teams work daily with source units and processors, amplifiers, speakers, subwoofers, wiring and installation accessories, sound treatment, and integration solutions. We also support remote start and vehicle security categories for customers who want added convenience and protection.

Creative Audio employs Mobile Electronics Certified Professionals, and we support customers before and after the sale. If you are unsure about compatibility, installation requirements, or what is included, message us through eBay with your application details and we will help you make an informed decision.

Most orders ship within 24 hours. For additional support, you may call 800-854-5821.
Shipping and Returns Assurance
Orders are packaged carefully and ship promptly to the address provided at checkout. If something arrives damaged or incomplete, contact us through eBay messages right away and we will help you resolve it.

Returns are accepted within 30 days in accordance with the return terms shown on this listing. Items must be returned in original condition. International returns are not accepted.