DOWN4SOUND | M3 MARINE 6.5 WITH RGB LIGHTING | 6.5″ MARINE COAXIAL SPEAKER SET | 175W RMS EACH | 8 OHM

The DOWN4SOUND M3-658 6.5-Inch 8-Ohm RGB Marine Coaxial Speakers are built for high-output marine audio systems in boats, UTVs, side-by-sides, golf carts, and other powersports applications. The M3-658 is the 8-ohm version, with each 6.5-inch marine speaker handling 175 watts RMS for a combined 350 watts RMS per pair.
These 8-ohm marine speakers combine clean, powerful sound with integrated RGB LED lighting and durable marine-grade construction. Each pair includes gray/silver grille covers, white grille covers, an RGB LED controller, and a remote control for convenient lighting customization.
M3-658 6.5-Inch 8-Ohm Marine Speaker Features

6.5-inch RGB marine coaxial speakers
8-ohm impedance per speaker
Sensitivity: 90 DB
175 watts RMS per speaker
350 watts RMS per pair
5.04-inch (128 mm) mounting cutout diameter
2.66-inch (67.5 mm) mounting depth
Integrated RGB LED lighting
RGB LED controller and remote included
Marine-grade construction
UV-resistant speaker cone
Durable rubber surround
Corrosion-resistant design
Gray/silver grille covers included
White grille covers included
Sold as a pair

6.5-Inch RGB Marine Speakers for Boats and Powersports
The DOWN4SOUND M3-658 is designed for marine audio installations that need strong output, clean sound, outdoor durability, and customizable RGB lighting. These 6.5-inch marine speakers are ideal for boat audio systems, UTV speaker pods, side-by-side sound systems, golf carts, and other outdoor audio builds.
For installation, each speaker requires a 5.04-inch (128 mm) mounting cutout and provides a 2.66-inch (67.5 mm) mounting depth. The integrated RGB LED lighting adds a custom appearance, while the included controller and remote make it easy to adjust the lighting. Two grille-cover options are included so you can choose between a gray/silver finish and a clean white finish.
Built for Marine Audio Applications
The M3-658 8-ohm marine speakers feature a UV-resistant cone, rubber surround, marine-grade construction, and a corrosion-resistant design. They are built for demanding marine, off-road, and powersports audio environments.
Whether you are replacing factory boat speakers or building a complete multi-speaker marine audio system, the M3-658 delivers 175 watts RMS per speaker with the flexibility of an 8-ohm impedance.
Recommended Applications

Boat audio systems
Marine audio systems
UTV audio systems
Side-by-side sound systems
Golf cart audio systems
Powersports audio builds
Off-road audio systems
Outdoor speaker installations

DOWN4SOUND M3-658 Specifications

Model: DOWN4SOUND M3-658
Speaker size: 6.5 inches
Speaker type: Marine coaxial speaker
Impedance: 8 ohms per speaker
Power handling: 175 watts RMS per speaker
Pair power handling: 350 watts RMS
Mounting cutout diameter: 5.04 inches (128 mm)
Mounting depth: 2.66 inches (67.5 mm)
Lighting: Integrated RGB LED lighting
RGB controls: Controller and remote included
Cone: UV-resistant marine cone
Surround: Rubber surround
Construction: Marine-grade and corrosion-resistant
Grille colors: Gray/silver and white
Quantity: Two speakers
Sold as: Pair

Included With the M3-658 Speaker Pair

Two DOWN4SOUND M3-658 6.5-inch 8-ohm RGB marine speakers
One set of gray/silver grille covers
One set of white grille covers
One RGB LED controller
One RGB remote control