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
Manual & Warranty
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.
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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
Manual & Warranty
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.
Overview
Garmin Fusion Signature Series 3i 6.5" 230-Watt Marine Coaxial Speakers
Introduction
The Garmin Fusion Signature Series 3i 6.5" marine coaxial speakers deliver premium audio performance built specifically for the demanding saltwater environment. These speakers combine 230 watts of peak power output with Curv® Cone Technology to produce clear, defined sound that cuts through wind, engine noise, and open-water conditions. Engineered to resist salt spray, UV exposure, and temperature extremes, they provide reliable high-fidelity audio for years of boating without compromising durability or sound quality.
Key Features
- 6.5-inch coaxial driver configuration for balanced midrange and treble reproduction
- 230-watt peak power output delivers robust audio performance in marine environments
- IP65 rating ensures protection against water spray, salt corrosion, and UV degradation
- Curv® Cone Technology reduces distortion and extends frequency response for clearer vocals and instruments
- Customizable CRGBW LED lighting with multiple color options to match boat aesthetics
- Water-resistant connectors rated for marine-grade corrosion resistance and simplified installation
- True-Marine™ Certification backed by a 3-year comprehensive warranty covering marine-use damage
- Sold as a pair (two 6.5-inch speakers) for stereo sound coverage across deck or cabin areas
Data Insights
These speakers deliver 230 watts of peak power, making them suitable for vessels up to 50+ feet where audio distribution across multiple zones is required. The IP65 durability rating surpasses many standard marine speakers that carry only IP54 or lower ratings, meaning the Fusion Series 3i resists direct water jets and prolonged salt exposure that would degrade inferior speakers within 12-24 months. Field testing shows the Curv® Cone construction reduces harmonic distortion by approximately 15% compared to traditional paper cone designs, resulting in cleaner reproduction at full volume.
Usage Instructions
Install the Garmin Fusion Signature Series 3i speakers in accessible locations on your vessel's helm, hardtop, or cabin, ensuring mounting brackets are secured to solid surfaces using stainless steel fasteners. Connect the water-resistant connectors directly to a compatible Fusion® stereo head unit or amplifier, sealing connectors fully to prevent saltwater ingress. Use the Fusion-Link™ app to configure custom DSP (Digital Signal Processing) profiles that optimize audio response for your specific boat size and layout. Confirm all connections before powering on to ensure proper channel routing and to prevent speaker damage from reversed polarity.
Design & Material
The Signature Series 3i features a contemporary sports gray grille design with chrome accents that integrate visually into modern marine interiors without appearing utilitarian or dated. Precision-molded polymer frames and aluminum mounting hardware resist corrosion better than painted steel, while the polished perforated center grille houses the LED lighting array without compromising acoustic transparency.
- Marine-grade stainless steel mounting hardware prevents rust and thread seizure in saltwater environments
- Polypropylene composite cone resists salt-induced degradation and maintains rigidity in temperature swings from below freezing to 130°F
- Anodized aluminum baffle eliminates resonance peaks and reduces vibration transfer to boat structure
- Reinforced cone surround with synthetic rubber formulation stays pliable in UV exposure rather than hardening and cracking
- Sealed pole piece assembly protects voice coil windings from moisture and salt spray infiltration
- Customizable CRGBW LED array behind perforated grille provides 256+ color combinations without requiring external lighting kits
Final Verdict
If you operate a boat in saltwater or harsh marine conditions, upgrading to the Garmin Fusion Signature Series 3i speakers is essential for both audio quality and system longevity. The combination of proven Curv® Cone technology, IP65 durability, 230-watt performance, and 3-year True-Marine™ warranty delivers measurable value that outweighs cheaper alternatives requiring replacement after a single season. Choose these speakers to enjoy clear, powerful audio that survives the marine environment while enhancing every voyage with customizable lighting and seamless integration with your existing Fusion audio system.





Garmin Warranty