Tech Specs
In The Box
12 Phillips stainless steel mounting screws, 4.2 mm x 40 mm (8 gauge x 1.6”)
2 water-resistant cable assemblies with 2-pin connector (5.9" (150mm))
2 water-resistant cable assemblies with 6-pin connector (5.9" (150mm), sports style with LED models only)
Documentation
Do you have an old GPS unit lying around? The GPS Nation Trade In and Up program is a great way to trade in your old and used GPS for credit towards a new GPS. The choice is entirely yours! We’ve made the process simple and streamlined. Follow these simple steps, and you will be on your way to receiving credit towards your brand new GPS!
1. Get a quote
To get your free quote, provide your GPS type, manufacturer, model, and condition. Within 24 hours, you will receive a quote for the trade-in value of your current product. The GPS trade-in/trade-up form is at the bottom of this page.
2. Ship your product(s) for trade
After accepting our offer, pack your product(s) safely and ship them to us using the pre-paid shipping label provided to you. We will provide a confirmation email when your trade-in arrives at our warehouse. You have 30 days from the date you complete your on-line trade to ship the product to GPS Nation.
3. Make your purchase
Once we receive your product at our warehouse and we validate the stated condition, we will send you a confirmation email. If you elect to receive credit towards a new GPS at gpsnation.com, your store credit will be issued, and you are free to make your purchase.
Manual & Warranty
Reviews
Ask a Question
Tech Specs
In The Box
12 Phillips stainless steel mounting screws, 4.2 mm x 40 mm (8 gauge x 1.6”)
2 water-resistant cable assemblies with 2-pin connector (5.9" (150mm))
2 water-resistant cable assemblies with 6-pin connector (5.9" (150mm), sports style with LED models only)
Documentation
Trade-In
Do you have an old GPS unit lying around? The GPS Nation Trade In and Up program is a great way to trade in your old and used GPS for credit towards a new GPS. The choice is entirely yours! We’ve made the process simple and streamlined. Follow these simple steps, and you will be on your way to receiving credit towards your brand new GPS!
1. Get a quote
To get your free quote, provide your GPS type, manufacturer, model, and condition. Within 24 hours, you will receive a quote for the trade-in value of your current product. The GPS trade-in/trade-up form is at the bottom of this page.
2. Ship your product(s) for trade
After accepting our offer, pack your product(s) safely and ship them to us using the pre-paid shipping label provided to you. We will provide a confirmation email when your trade-in arrives at our warehouse. You have 30 days from the date you complete your on-line trade to ship the product to GPS Nation.
3. Make your purchase
Once we receive your product at our warehouse and we validate the stated condition, we will send you a confirmation email. If you elect to receive credit towards a new GPS at gpsnation.com, your store credit will be issued, and you are free to make your purchase.
Manual & Warranty
Overview
Garmin Fusion Signature Series 3i Marine Coaxial Speakers 6.5" 230-Watt Classic White (Pair)
Introduction
The Garmin Fusion Signature Series 3i marine coaxial speakers deliver 230 watts of power output through a pair of 6.5-inch drivers engineered specifically for salt-water environments. Unlike conventional speakers that corrode or degrade in marine conditions, these coaxial speakers combine high-output performance with True-Marine™ certification and a 3-year warranty, making them built to maintain audio quality across seasons of regular boating use. The Curv® Cone Technology provides superior sound definition even at high volume levels, ensuring clarity for everything from casual background music to active gatherings on deck.
Key Features
- 230-watt power output per pair for robust audio performance in open-water environments
- 6.5-inch coaxial driver design with Curv® Cone Technology for 20% improved sound clarity versus previous Fusion models
- IP65-rated protection rating against salt spray, UV exposure, and extreme temperature fluctuations
- Water-resistant connectors that simplify installation while preventing corrosion-related connectivity issues
- Customizable LED illumination with multiple color options configurable through the Fusion-Link app
- DSP profile integration with Fusion stereo systems and amplifiers for seamless system compatibility
Data Insights
Real-world testing in marine conditions has documented a 20% improvement in sound clarity across the Signature Series 3i compared to earlier Fusion coaxial models, with users specifically noting superior bass response and enhanced high-frequency definition. The IP65 protection rating confirms these speakers withstand prolonged exposure to saltwater spray and UV radiation without degradation in audio performance or physical integrity. Users report that positioning at ear level delivers the most balanced sound stage during both quiet listening and high-energy marine gatherings.
Usage Instructions
Secure the speakers using the included mounting hardware, positioning them at approximate ear level for optimal stereo imaging. Connect the water-resistant connectors directly to your Fusion stereo head unit or amplifier system. Access the Fusion-Link app to configure LED color preferences and load available DSP profiles optimized for your specific boat interior acoustics. Verify all cable connections are fully seated before power-up to prevent intermittent audio dropout in rough water conditions.
Design & Material
The Signature Series 3i speakers feature a contemporary circular design finished in classic white, blending seamlessly with modern marine interiors while maintaining a clean, minimalist aesthetic. Every external component has been marinized to resist the corrosive effects of saltwater, UV exposure, and temperature cycling that typically compromise standard audio equipment on the water.
- Perforated metal grille with corrosion-resistant coating prevents salt spray deterioration and protects internal components
- Marinized speaker cone and surround assembly rated to withstand salt-laden air and rapid temperature changes
- Classic white finish integrates with contemporary boat cabinetry and dash designs
- 6.5-inch diameter form factor fits standard marine speaker mounting locations with minimal custom fabrication
- Integrated LED ring with multi-color illumination options enhances nighttime ambiance without external modifications
- Straightforward panel-mount installation using standard hardware, requiring only basic hand tools and minimal deck time
Final Verdict
The Garmin Fusion Signature Series 3i speakers provide marine-specific audio performance that standard aftermarket coaxial speakers cannot match. With documented 20% improvements in sound clarity, True-Marine certification, and water-resistant engineering throughout, these 230-watt speakers eliminate the compromise between premium audio and marine durability. If you operate your boat regularly in saltwater environments and expect your audio system to deliver consistent performance season after season, the Signature Series 3i represents the essential foundation for reliable marine entertainment.





Garmin Warranty