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🎧 Elevate your drive with Infinity’s precision-tuned power and clarity — don’t just listen, experience every note.
The Infinity Kappa 303S is a 3-inch midrange speaker pair featuring advanced bandpass crossover enclosures designed for seamless 2- or 3-way car audio system upgrades. Equipped with edge-driven silk dome tweeters and oversized voice coils, it delivers ultra-smooth highs up to 40kHz and robust 110W power handling. Its lightweight glass fiber woofer cones provide enhanced low-frequency output and efficiency. With adjustable tweeter output levels and a sleek flush mount design, this system offers audiophile-grade sound clarity and customizable performance tailored for professional-grade in-car audio enthusiasts.
| Additional Features | Lightweight |
| Age Range Description | Adult |
| Antenna Location | For Surround Sound Systems |
| Asin | B095B21FT2 |
| Audio Driver Size | 8.9 centimeters |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #152,337 in Electronics (See Top 100 in Electronics) #1,746 in Car Coaxial Speakers |
| Brand | Infinity |
| Built In Media | KAPPA303S |
| Color | Black |
| Compatible Devices | Laptop |
| Compatible With Vehicle Type | & SUVs, Select Cars, Truck |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Bluetooth |
| Control Method | Voice |
| Controller Type | Button |
| Customer Package Type | Flat Free Package |
| Customer Reviews | 4.9 4.9 out of 5 stars (17) 4.9 out of 5 stars |
| Enclosure Material | Glass Fiber |
| Frequency Response | 15000 hertz |
| Impedance | 3 ohm |
| Is Waterproof | FALSE |
| Item Dimensions D X W X H | 8"D x 2"W x 4"H |
| Item Weight | 0.78 kg |
| Manufacturer | Infinity |
| Model Name | KAPPA303S |
| Model Number | KAPPA303S |
| Mounting Type | Flush Mount |
| Number Of Audio Channels | 3 |
| Number Of Circuits | 1 |
| Number Of Items | 1 |
| Power Source | Corded Electric |
| Series Number | 303 |
| Signal To Noise Ratio | 93 db |
| Speaker Maximum Output Power | 110 watts |
| Speaker Size | 3 inches |
| Speaker Type | Component |
| Specific Uses For Product | Car audio systems, including two-way and three-way component upgrades, and general car audio enhancement. |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 3 inches |
| Unit Count | 1 Count |
| Upc | 050667377007 |
| Warranty Description | 1-Year Manufacturer Warranty |
| Warranty Type | Limited Warranty |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 8.9 centimeters |
User
Audiophile grade audio that can fit your OEM system.
Installed these on my Grand Highlander Limited with JBL OEM sound, We had to make a base plate because these are 3 inches instead of 3.5 from the factory and we did trim a little of the oem underplate for the speaker covers so they fit perfect. They sound astonishingly good, voice is very clear, I can hear stuff that previously where disguised as noise the highs are so detailed and smooth Im amazed on how good this sound.
User
The price can't be beat for the quality.
Why did you pick this product vs others?:Sound quality it super.
User
Crossovers have 3 way plug not two way plug won’t work for my infinity kappa crossovers
Sound amazing, problem is they won’t work with my crossovers as they state they will a simple plug and play. My crossovers require a 2 prong plug and these come with a 3 prong plug, Update, it’s a 3 way plug but you can plug it into the 2 way just make sure it’s the two wires that are the same color as that’s what sounds the best, you will have to trim a small amount off the crossover to put the cover back on to accommodate for the 3 way plug.
User
👍
Quality sound
User
Excellent sounds
Perfect addition to my system!
User
Doesn’t look like much but sounds amazing especially active
Doesn’t look like much but sounds amazing especially active.Crossover used 300-4000khz with the kappa perfect components. Up front bass. Very clear. I did have one start having distortion but could have been my fault but they come with 3 year warranty and infinity replaced it for free.
Trustpilot
1 month ago
2 months ago