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"Fit perfectly and worked exactly as expected — support was excellent."
Infinity Primus 683F
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
Check Compatibility
2 left in stock
Ships within 1-3 days
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Infinity Primus 683F 6"x8" 2-Way Car Speakers
The Infinity Primus 683F is a high-performance 6"x8" coaxial speaker designed to provide a significant audio upgrade over factory-installed systems. It features Infinity's signature Plus One™ woofer cone technology and an edge-driven silk dome tweeter to deliver a balanced sound profile with punchy bass and natural-sounding highs.
Key Features
Patented Plus One™ Woofer Cones
The Primus 683F utilizes polypropylene cones with the patented Plus One™ architecture, which provides up to 35% more surface area than other cones in its class. This extra radiating area allows for higher sensitivity and a more robust low-frequency response without needing more power.
Edge-Driven Silk Dome Tweeters
Unlike cheaper "W-dome" or balanced-dome tweeters, the edge-driven design in the Primus 683F provides better dispersion and a smoother high-frequency response. This results in a more natural, less fatiguing sound for vocals and high-frequency details like cymbals.
True 4-Ohm Architecture
These speakers feature a 3.0-ohm impedance (known as True 4-ohm technology). This lower impedance safely draws more power from your factory or aftermarket head unit, ensuring a clearer and louder output even without a dedicated external amplifier.
Vented Basket Frame
To ensure long-term reliability, Infinity has equipped these speakers with rigid vented baskets. This design wicks heat away from the voice coil like a fan as the speaker moves, keeping the motor structure cool and preventing thermal performance degradation during long listening sessions.
Technical Specifications
| Category | Specification |
| Speaker Size | 6" x 8" (Custom-fit for Ford/Mazda) |
| Power Handling | 50W RMS / 150W Peak |
| Sensitivity | 92 dB (@ 2.83V) |
| Frequency Response | 65 Hz – 20 kHz |
| Impedance | 3.0 Ohms |
| Tweeter Type | 1/2" Edge-Driven Silk Dome |
| Installation Depth | 2-5/16" (Top-Mount) |
- 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 Primus 683F
Sale price$89.95
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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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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