Infinity Kappa Perfect 600X
Kappa Perfect Series 6-1/2" Component Speaker System for Select Harley-Davidson Vehicles
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Infinity Kappa Perfect 600X | 6.5" Two-Way Marine/Motorcycle Speakers
The Infinity Kappa Perfect 600X is a high-fidelity 6.5-inch (165 mm) speaker system purpose-built for the unique challenges of motorcycle and marine audio. Drawing inspiration from rider culture, these speakers utilize Basalt fiber—a volcanic rock material—to create a cone that is exceptionally light yet rigid enough to deliver "big" sound in open-air environments. Like its larger sibling, the 900X, this model features a removable tweeter, giving you the flexibility to use them as either high-output coaxials or a dedicated component set.
Product Highlights
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Basalt Fiber Plus One™ Woofer: Combines the natural strength of basalt with patented Plus One™ geometry to increase cone surface area, resulting in deeper bass and higher volume levels.
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IPX5 Weather Protection: Specifically engineered for the elements with an IPX5 waterproof rating on the front and weather resistance on the back, allowing for worry-free riding in the rain.
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Removable Tweeter System: A "smart" design that allows the tweeter to be untwisted from the woofer for separate mounting, offering a true component upgrade path based on your listening preference.
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Neodymium Motor: Uses a high-energy Neodymium magnet to keep the overall weight low, which is critical for maintaining a motorcycle's center of gravity while delivering high efficiency.
Key Features
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1" Edge-Driven PPS Tweeter: The Polyphenylene Sulfide (PPS) dome tweeter is designed to cut through wind and road noise with silky smooth highs without becoming harsh at high volumes.
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Harley-Davidson Ready: Includes specialized grilles designed to fit Street Glide, Road Glide, and Tour-Pak factory locations for a seamless, factory-style appearance.
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High Sensitivity: Rated at 95 dB, these speakers are extremely efficient, extracting maximum performance from your amplifier or high-powered head unit.
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Premium ID Design: Features an inky black satin finish and branding inspired by motorcycle culture, including a tweeter grip pattern reminiscent of tribal tattoos.
Technical Specifications
| Feature | Specification |
| Speaker Size | 165 mm (6.5 in.) |
| Design | 2-Way (Convertible Coaxial/Component) |
| Power Handling (RMS) | 80 Watts |
| Power Handling (Peak) | 240 Watts |
| Impedance | 3.0-Ohm |
| Frequency Response | 60 Hz – 20,000 Hz |
| Sensitivity | 95 dB SPL |
What’s In The Box?
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(2) 6.5" Woofers with removable tweeters
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(2) Street Glide grilles
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(2) Road Glide grilles
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(2) Tour-Pak grilles
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(2) In-line crossover pigtails
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(2) Tweeter surface-mount kits
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(3) Infinity logo badges (3M adhesive)
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Mounting hardware
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.