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Infinity Kappa Perfect 600X
Upgrade Your Vehicle With Confidence. This Is Built to Fit, Perform, and Last
Real installer support before and after purchase
Price Match Guarantee
Full Manufacturer 2 Years Warranty
Free 30-Day Returns
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2 left in stock
Ships within 1-3 days
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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
- Ships within 1–3 business days from our warehouse
- Tracking included with every order
- Free 30-day returns if it doesn’t work for your setup
- 2-year manufacturer warranty
- Authorized dealer guarantee
- Real installer-backed support before and after purchase
Infinity Kappa Perfect 600X
Sale price$599.95
Why This Upgrade Makes Daily Driving Better
Ease of Use & Safety
Hands-free control reduces distraction and frustrationwhile driving.
Expandable by Design
Add backup cameras, better speakers, amps, or subsanytime.
FITMENT & INSTALLATION MADE SIMPLE
WHAT VEHICLES IT WORKS WITH
FIND THE RIGHT PRODUCT FOR YOUR EXACT VEHICLE
We verify compatibility before you buy, no guesswork.
DIY FRIENDLY IF:
- You're comfortable with basic tools
- You follow provided instructions
PROFESSIONAL INSTALL RECOMMENDED IF:
- Your vehicle requires dash kits or wiring adapters
- You want a turnkey experience
INSTALLATION CREDIT & SUPPORT:
- $75 Installation Credit when purchased online
- Speak to real installers before you buy
- Bring it into one of our locations for install
40 Years of Installation Experience
Tens of Thousands of Installs Completed
Authorized Dealer Full Warranties
Why Buying This Here Is Safer Than Anywhere Else
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Verified Vehicle Fit
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Installer Support
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Authorized Products
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Easy Returns
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Physical stores & real installers
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FREQUENTLY ASKED QUESTIONS
FREQUENTLY ASKED QUESTIONS
How do I know this stereo or speaker will fit my car?
Select your year, make, and model using the Vehicle Fit Guide at the top of the page. You’ll only see products that are compatible with your exact vehicle setup.
What happens if I order something that doesn’t fit?
You can return or exchange it within 30 days. We’ll help you identify the correct part for your vehicle so you don’t have to guess again.
Are these products brand new and covered by warranty?
Yes — all products are brand new, authentic, and sold as an authorized dealer, which means they include a full manufacturer warranty.
Can you install this for me, or do I need to do it myself?
You can do either. Install it yourself, or use your $75 installation credit at our shop and have it professionally installed by our team.
What if I don’t know what to choose for my car?
Tell us your vehicle and what you want to improve (sound, bass, CarPlay, etc.). We’ll recommend the exact products that fit your car and your budget.
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