Hero image 0 of Infinity Kappa 603CF 6-1/2" (165mm) Two-way Component Speaker System, 0 of 7

Best seller

Infinity Kappa 603CF 6-1/2" (165mm) Two-way Component Speaker System

Name: Infinity Kappa 603CF 6-1/2" (165mm) Two-way Component Speaker System
Brand: Infinity
SKU: 167305972
Price: 351.95 USD
Availability: InStock
Rating: 3.7 (3 reviews)

3.7 stars out of 3 reviews

(3.7)|

3 ratings

Key item features

Advanced Tweeters: Features 40kHz high-resolution silk dome tweeters with an edge-driven design for improved dispersion and lower crossover frequency, enhancing vocal clarity.
Robust Woofers: Equipped with patented Plus One glass fiber woofers and hi-roll rubber surrounds, providing durable and responsive bass performance.
Flexible Tweeter: Incorporates UniPivot and Angled Tweeter technology, allowing for directional sound optimization within the vehicle.
Compact Midrange: Includes a super compact design and high sensitivity 3" midrange speaker, contributing to a balanced sound profile.
Efficient Power: Designed with 3-ohm impedance and a 3 voice coil, enabling high output from factory radios or aftermarket amplifiers, handling up to 110 watts RMS.
Broad Frequency: Offers a wide frequency response range from 45 Hz to 40,000 Hz, capturing a full spectrum of audio details.
High Sensitivity: Boasts a sensitivity of 93 dB at 2.83 volts, ensuring efficient sound production even with lower power input.

Generated by AI

Specs

Size
6-1/2\"
Car speaker size class
6.5"
Car speaker type
Component Speakers
Rms power rating
110 W
Peak audio power handling
0
Speaker elements
2-Way

Current price is Now $351.95

You save $88.00

was $439.95

Price when purchased online

Free shipping
Free 30-day returns

Walmart Protection Plan by Allstate

(Only one option can be selected at a time)

3-Year Plan - $36.00

4-Year Plan - $49.00

How do you want your item?

Columbus, 43215

Arrives by Wed, Feb 4

Sold and shipped by 360 Audio

5 stars out of 5, based on 1 seller review(5.0)

Report an issue with this seller

Free 30-day returns

More seller options (1)

Starting from $449.95

About this item

Product details

Infinity Kappa 603CF
Kappa Series 6-1/2" Component Speaker System

These 3-ohm speakers boast ultra-high sensitivity so that you can power them with a factory radio or aftermarket stereo, but you'll get your best results feeding them plenty of power from an outboard amp. Either way, these speakers' low impedance safely takes advantage of every watt of power available for exceptional performance. Enjoy Kappa sound quality at any volume.

Product Highlights:

Component speaker system includes 2 woofers, 2 tweeters, and 2 external crossovers
6-1/2" Plus One+ glass-fiber woofer cone with hi-roll rubber surround
Edge-driven, silk dome tweeter
3-ohm impedance
Handles up to 110 watts RMS (330 watts peak power)
Frequency response: 45-40,000 Hz
Sensitivity: 93 dB at 2.83 volts
Woofer top-mount depth: 2-1/8"
Grilles not included
Warranty: 3 years
Our 30-day money-back guarantee
MFR # INFSPKKA603CFAM

High-Output Design: The high output 3Ω voice coil design compensates for the high in-line resistance of small gauge factory wiring and extracts every watt from factory receivers, increasing overall system output and efficiency (relative to 4Ω speakers). The speakers also benefit from increased power when you upgrade the wire and add aftermarket amplifiers, designed to power a 3Ω load.

Edge Driven Tweeters: The ¾" edge-driven tweeters use silk domes. An edge-driven tweeter has better dispersion characteristics and allows for a lower crossover frequency than typical tweeters of the same size, which improves imaging. The result is improved vocals and musical clarity. The 6" speaker wire attached to each tweeter is terminated with male quick-slides (0.187" positive and 0.110" negative).

40kHz High-resolution Silk Dome Tweeter
Patented Plus One™ Glass Fiber Woofers
UniPivot and Angled Tweeter
Super Compact Design and High Sensitivity 3" Midrange Speaker

info:

We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.

Specifications

Size

6-1/2\"

Car speaker size class

6.5"

Car speaker type

Component Speakers

Rms power rating

110 W

Warranty

Warranty information

Has Full Manufacturer Warranty

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Compare with similar items

Comparison Overview:
Product	Viewing this item Infinity Kappa 603CF 6-1/2" (165mm) Two-way Component Speaker System current price Now $351.95, Was $439.95 Infinity Kappa 603CF 6-1/2" (165mm) Two-way Component Speaker System 3.7 out of 5 Stars. 3 reviews	Infinity Kappa 693C 6" x 9" (168mm x 240mm) Two-way Component Speaker System current price $484.95 Infinity Kappa 693C 6" x 9" (168mm x 240mm) Two-way Component Speaker System	Infinity KAPPA-90CSX 6" x 9" Two-Way Car Audio Component System w/Gap Switchable Crossover current price $229.95 Infinity KAPPA-90CSX 6" x 9" Two-Way Car Audio Component System w/Gap Switchable Crossover 4 out of 5 Stars. 2 reviews	Infinity Primus 3-pairs Of PR5012IS 5-1/4 2-way Speakers current price $179.89 Infinity Primus 3-pairs Of PR5012IS 5-1/4 2-way Speakers	Infinity Kappa 303S 3" (89mm) Midrange with Bandpass Crossover Enclosure - Pair current price Now $199.95, Was $239.95 Infinity Kappa 303S 3" (89mm) Midrange with Bandpass Crossover Enclosure - Pair	Infinity Primus 4-Pairs Of PR5012IS 5-1/4 2-way Speakers current price $239.85 Infinity Primus 4-Pairs Of PR5012IS 5-1/4 2-way Speakers	Infinity KAPPA-20MX 2" 50mm Car Audio Dome Midrange w/Bandpass Crossover Enclosure current price $118.95 Infinity KAPPA-20MX 2" 50mm Car Audio Dome Midrange w/Bandpass Crossover Enclosure 5 out of 5 Stars. 1 reviews	Infinity REF 6530CX 6-1/2" 2-Way Component Speakers current price Now $108.95, Was $158.95 Infinity REF 6530CX 6-1/2" 2-Way Component Speakers 5 out of 5 Stars. 1 reviews

Comparison Chart:
Size	6-1/2\"Infinity Kappa 603CF 6-1/2" (165mm) Two-way Component Speaker System	6" x 9" (168mm x 240mm)Infinity Kappa 693C 6" x 9" (168mm x 240mm) Two-way Component Speaker System	6\" x 9\"Infinity KAPPA-90CSX 6" x 9" Two-Way Car Audio Component System w/Gap Switchable Crossover	5.25"Infinity Primus 3-pairs Of PR5012IS 5-1/4 2-way Speakers	3"Infinity Kappa 303S 3" (89mm) Midrange with Bandpass Crossover Enclosure - Pair	5.25"Infinity Primus 4-Pairs Of PR5012IS 5-1/4 2-way Speakers	2"Infinity KAPPA-20MX 2" 50mm Car Audio Dome Midrange w/Bandpass Crossover Enclosure	6-1/2\"Infinity REF 6530CX 6-1/2" 2-Way Component Speakers
Car speaker size class	6.5"Infinity Kappa 603CF 6-1/2" (165mm) Two-way Component Speaker System	6" x 9"Infinity Kappa 693C 6" x 9" (168mm x 240mm) Two-way Component Speaker System	6" x 9"Infinity KAPPA-90CSX 6" x 9" Two-Way Car Audio Component System w/Gap Switchable Crossover	5.25"Infinity Primus 3-pairs Of PR5012IS 5-1/4 2-way Speakers	3.5"Infinity Kappa 303S 3" (89mm) Midrange with Bandpass Crossover Enclosure - Pair	5.25"Infinity Primus 4-Pairs Of PR5012IS 5-1/4 2-way Speakers	-Infinity KAPPA-20MX 2" 50mm Car Audio Dome Midrange w/Bandpass Crossover Enclosure	6.5"Infinity REF 6530CX 6-1/2" 2-Way Component Speakers
Car speaker type	Component SpeakersInfinity Kappa 603CF 6-1/2" (165mm) Two-way Component Speaker System	Component SpeakersInfinity Kappa 693C 6" x 9" (168mm x 240mm) Two-way Component Speaker System	Component SpeakersInfinity KAPPA-90CSX 6" x 9" Two-Way Car Audio Component System w/Gap Switchable Crossover	-Infinity Primus 3-pairs Of PR5012IS 5-1/4 2-way Speakers	Component SpeakersInfinity Kappa 303S 3" (89mm) Midrange with Bandpass Crossover Enclosure - Pair	-Infinity Primus 4-Pairs Of PR5012IS 5-1/4 2-way Speakers	MidrangeInfinity KAPPA-20MX 2" 50mm Car Audio Dome Midrange w/Bandpass Crossover Enclosure	Component SpeakersInfinity REF 6530CX 6-1/2" 2-Way Component Speakers
Rms power rating	110 WInfinity Kappa 603CF 6-1/2" (165mm) Two-way Component Speaker System	145 WInfinity Kappa 693C 6" x 9" (168mm x 240mm) Two-way Component Speaker System	135 WInfinity KAPPA-90CSX 6" x 9" Two-Way Car Audio Component System w/Gap Switchable Crossover	40 WInfinity Primus 3-pairs Of PR5012IS 5-1/4 2-way Speakers	55 WInfinity Kappa 303S 3" (89mm) Midrange with Bandpass Crossover Enclosure - Pair	40 WInfinity Primus 4-Pairs Of PR5012IS 5-1/4 2-way Speakers	65 WInfinity KAPPA-20MX 2" 50mm Car Audio Dome Midrange w/Bandpass Crossover Enclosure	45 WInfinity REF 6530CX 6-1/2" 2-Way Component Speakers

Now hiding additional rows in the Table

Customer ratings & reviews

3.7 out of 5 stars

stars3 ratings2 reviews

How item rating is calculated

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.

Sort by |

Showing 1-2 of 2 reviews

Jan 20, 2026

Stardas

Sold and shipped byD-C-O

5 out of 5 stars review

Verified Purchase

The seller have sent the speakers, and they had a great discount. Unfortunately before they arrived, I realized that they will not fit my car (depth wise), thus have returned unopened box.

Helpful?

Aug 17, 2024

Haley

Sold and shipped byDiscountsJungle

1 out of 5 stars review

Verified Purchase

Never received. They cancelled the order

I'm guessing they cancelled my order because they had the item listed for cheaper than everyone else. It also took a week before they cancelled it, would not recommend this vendor.

Helpful?