Stage 1.5 Audio Package - RA210/M3-770x

Stage 1.5 Audio Package: Fusion RA210 + JL Audio M3-770X Speakers

This package bundles the Fusion® MS-RA210 head unit with two pairs (four total) of JL Audio® M3-770X-S-Gw 7.7" coaxial speakers and a soft hideaway AM/FM antenna — a step up from the 6.5" M3 package with a bigger driver for more low-end output, still running comfortably off the RA210's built-in amp with no external amplifier required. No guessing on compatibility, no mismatched power handling. Just a source unit, four larger speakers built to run off it, and the antenna it needs to pull in AM/FM, ready to install.

Why This Combo Works

The M3-770X uses JL Audio's oversized 7.7" driver, which increases efficiency — more output for a given amount of power — so it plays louder and cleaner at high volumes than the smaller 6.5" M3 speaker. It's still built around the same M3 design principles: long-excursion woofer, pure silk dome tweeter, and marine-grade construction throughout. The RA210's Class-D amp section and Multi-Zone™ output are a natural fit for running four of these across two zones — helm and cockpit, for example — each with independent volume control, no external amp needed for a setup like this. The soft hideaway antenna rounds it out — a low-profile, concealed-mount AM/FM antenna so you're not stuck buying reception hardware separately.

1. Fusion® MS-RA210 Stereo (010-02250-00)

A compact marine head unit built around Fusion's DSP platform, with a 2.7" optically bonded full-color LCD set into a black face for a clean look at the helm. It mounts flush or flat, and the display and controls stay legible in direct sun.

• Sources: AM/FM, Bluetooth, USB, Aux-in, SiriusXM-ready, DAB+
• DSP: Built-in Digital Signal Processing with feed-forward limiting for distortion-free output at any volume
• Zones: Multi-Zone™ — two independently controlled audio zones, ideal for splitting this package's four speakers across helm and cockpit
• Amplifier: Class-D, ~90% efficient, lower heat and power draw than traditional amp sections
• Connectivity: Fusion-Link™ app control (iOS/Android), Garmin watch control via Fusion-Link Lite, NMEA 2000® integration
• Water resistance: IPX6 & IPX7-rated front panel (properly mounted)
• Speed-based volume: Auto-adjusts volume vs. boat speed when paired with an NMEA 2000 speed source
• In the box: Mounting gasket, self-tapping screws, screw covers, power/speaker harness, Aux-in/line-out/sub-out harness, 6 ft NMEA 2000 drop cable

2. JL Audio® M3-770X-S-Gw 7.7" Coaxial Speakers — Two Pairs / Four Total (010-03068-00)

JL Audio's oversized 7.7" option in the M3 line, finished with gloss white sport grilles and built specifically for marine duty rather than adapted from car audio. This package includes two pairs (four speakers total), enough to wire a full two-zone system off the RA210's Multi-Zone™ output.

• Configuration: 2-way coaxial, 7.7" woofer + 0.75" pure silk dome tweeter
• Woofer: Mica-injected polypropylene cone, long-excursion design
• Power handling: 70W RMS / 225W peak per speaker
• Impedance: 4 ohms
• Sensitivity: 90.5 dB @ 1W
• Frequency response: 45 Hz – 25 kHz
• Recommended power: 20W minimum, 75–100W per channel for best performance
• Tweeter protection: Built-in second-order high-pass tweeter filter with solid-state protection circuit
• Mounting: 6.92" bolt hole circle, ~3.17" mounting depth clearance, 1.10" grille protrusion
• Air space: Free-air rated — needs at least 2 cu. ft. (57 L) of enclosed air volume behind each speaker for full low-frequency performance
• Build: Exceeds international salt fog and UV exposure standards
• Warranty: 3-year manufacturer warranty
• Quantity in this package: 4 speakers (2 pairs)

3. Soft Hideaway AM/FM Antenna

A low-profile, soft hideaway antenna built to withstand real saltwater exposure and wired to plug straight into the RA210's standard antenna input.

• Reception: AM/FM
• Build: Marine-grade materials, engineered for saltwater environments
• Mount style: Soft, hide-away / concealed mount

What's Included

• 1x Fusion MS-RA210 Stereo (010-02250-00) with mounting hardware, gasket, and wiring harnesses
• 4x JL Audio M3-770X-S-Gw 7.7" Coaxial Speakers (010-03068-00) — 2 pairs
• 1x Soft Hideaway AM/FM Antenna

Note: Speaker wire, tinned marine-grade connectors, and mounting fasteners for non-standard dash cutouts are not included. Each speaker requires a minimum of 2 cu. ft. of enclosed air space for proper low-frequency performance — confirm cavity volume before installing in tight console or gunwale locations. With four speakers on a two-zone head unit, plan your zone wiring (helm pair vs. cockpit/aft pair) before running cable.