Infinity Kappa Perfect 900X
Kappa Perfect 6" x 9" Component Speaker System for Harley Davidson
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Infinity Kappa Perfect 900X | 6" x 9" Two-Way Marine/Motorcycle Speakers
The Kappa Perfect 900X is a high-fidelity speaker system specifically engineered for the extreme environments of motorcycles and marine vessels. Part of Infinity’s flagship "Perfect" line, these 6" x 9" drivers combine lightweight, durable materials like Basalt fiber with massive power handling to cut through wind and road noise. They feature a unique removable tweeter design, allowing you to install them as either a high-performance coaxial or a dedicated component system.
Product Highlights
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Basalt Fiber Woofer: Utilizing Plus One™ technology, the basalt fiber cone is incredibly stiff yet lightweight, providing more surface area than standard cones for deeper, more impactful bass.
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Removable Tweeter Design: Offers the flexibility to keep the tweeter mounted in the center (Coaxial) or move it to a custom location (Component) for a better soundstage.
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Extreme Weather Resistance: Boasts an IPX5 rating for the front of the speaker and superior weather resistance for the back, making it ideal for fairings and saddlebags.
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Edge-Driven PPS Tweeter: The 1" Polyphenylene Sulfide (PPS) dome tweeter is designed to reproduce perfectly crisp highs without the harshness often found in metallic domes.
Key Features
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Neodymium Magnet: Provides an exceptionally high magnetic flux for better control and efficiency while keeping the speaker significantly lighter than traditional ferrite-magnet models.
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Premium ID Design: Visually inspired by motorcycle and rider culture, featuring a sleek, rugged look that matches premium custom builds.
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High Efficiency: Designed to deliver high sound pressure levels (SPL) even when exposed to open-air environments at highway speeds.
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Harley-Davidson Optimized: Specifically suited for the demanding mounting requirements of touring bike saddlebags and fairing upgrades.
Technical Specifications
| Feature | Specification |
| Speaker Size | 6" x 9" |
| Design | 2-Way (Convertible Coaxial/Component) |
| Power Handling (RMS) | 100 Watts |
| Power Handling (Peak) | 300 Watts |
| Weather Rating | IPX5 (Front) |
| Magnet Type | Neodymium |
| Tweeter Material | PPS (Polyphenylene Sulfide) |
What’s In The Box?
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(2) Infinity Kappa Perfect 900X 6"x 9" Speakers
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(2) Removable Tweeters
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(2) Crossover networks
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Mounting hardware and gaskets
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Owner’s manual
What Others Are Saying
Eddie was great - SDCS installed a new head unit in my 2019 4Runner. He was honest in his opinions regarding the options I was considering. Pricing was also good - he was able to reuse some of my existing installation kit so I saved a bit of $$.Installation was clean and fast and he took the time to walk through the features before I left. Highly recommend!!
I had a great time at this shop! The staff really knows their stuff and took the time to explain the different options without pressure. Installation was quick, clean and professional. Everything looks factory and sounds amazing. The prices were fair and customer service was above and beyond. I highly recommend this place if you're looking for quality car audio and excellent service.
Those guys are really professional! I had a new Alpine floating head unit installed in my 2008 Mercedes, and it feels like a brand-new car. The installation was super clean. At first, the sound wasn’t the same as the factory stereo, but Kevin tuned it to be just as good—if not better—without adding any new amps. They even used my factory GPS antenna so I don’t have extra wires hanging out. On top of that, they matched the online price. Big thanks to Kevin and Eddie—highly recommended!
Kevin was awesome, he took his time and explained everything to me. I went in initially for a dash cam install and then decided to get a sub and amp installed as well. Both turned out great and will be returning if I need more work done.
Came In not knowing what to expect when suddenly my stereo stopped working. Spoke with Kevin in the front and after a VERY fast diagnosing they discovered my wiring was incorrect. After only about 45 minutes total being in the store I was on my way to the beach with a working stereo again! Thank you so much SDCARSTEREO
Highly recommend Kevin and the team at San Diego Car Stereo for any issues with aftermarket stereos. I bought a car with an aftermarket stereo and AC unit that wasn’t working properly—specifically, the heat wasn’t functioning due to an improper setup. I had several people look at it with no luck, and even the dealership basically refused to help because it was an aftermarket install. I came to Kevin and his team over the holidays feeling pretty defeated, but he was confident he could get the heat working before I headed back to a Colorado winter. Sure enough, he got it done.
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.