Stage 3 Audio Package - RA210/M6-650x/AP300

Stage 3 Audio Package: Fusion RA210 + JL Audio M6 Speakers + AP300/4 Amplifier

This is a real step up from a stock stereo-and-speakers setup. It pairs the Fusion® MS-RA210 head unit with four JL Audio® M6-650X-S-GwGw 6.5" coaxial speakers — JL Audio's flagship marine coaxial line — run through a dedicated JL Audio AP300/4 amplifier instead of the head unit's built-in amp. We've included the correct-gauge power connection kit and RCA cable to wire it properly, plus a hide-away AM/FM antenna. Everything needed to build a genuinely high-output system that won't run out of headroom, in one package.

Why This Combo Works

The M6 Series sits above JL Audio's M3 line as their maximum-performance marine coaxial — DMA-optimized long-excursion woofers, matched silk dome tweeters, and advanced filter networks built into each speaker's own crossover. Speakers at this level are designed to be run with real amplification, not just off a head unit's internal amp, which is exactly what the AP300/4 is built for: a compact, IP67-rated 4-channel Class-D amplifier that can drive all four speakers at 50W x 4 into 4 ohms (or up to 150W x 2 bridged). Pair it with the RA210's built-in DSP and JL Audio's Easy Tune feature streamlines the whole setup and tuning process. The premium 6 AWG power kit and marine-grade RCA cable round it out so the amp is wired the right way the first time, and the hide-away antenna keeps AM/FM reception covered without a separate order.

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. Its DSP and Easy Tune compatibility make it a strong match for a dedicated amplifier setup like this one.

• Sources: AM/FM, Bluetooth, USB, Aux-in, SiriusXM-ready, DAB+
• DSP: Built-in Digital Signal Processing with feed-forward limiting
• Zones: Multi-Zone™ — two independently controlled audio zones
• Connectivity: Fusion-Link™ app control, NMEA 2000® integration, Easy Tune compatible with the AP300/4
• Water resistance: IPX6 & IPX7-rated front panel (properly mounted)
• 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® M6-650X-S-GwGw 6.5" Coaxial Speakers — Qty 4 (010-03090-00)

JL Audio's flagship 6.5" marine coaxial, finished with gloss white sport grilles. Built for maximum output and detail at every listening level rather than just adequate performance at moderate power.

• Configuration: 2-way coaxial with DMA-optimized long-excursion woofer and suspended silk dome tweeter
• Crossover: Multi-order true two-way filter network built into each woofer chassis, with tweeter protection circuit
• Speaker connections: Spade connectors
• Mounting: 5–5.25" mounting hole, 6.13" bolt hole circle, 3" mounting depth clearance, 1.02" grille protrusion
• Build: Removable grille and trim ring (paintable), exceeds international salt fog and UV exposure standards
• Warranty: 3-year manufacturer warranty
• Quantity in this package: 4 speakers (2 pairs)

3. JL Audio® AP300/4 Compact Amplifier w/ Easy Tune (010-03429-00)

A tough, ultracompact 4-channel Class-D amplifier built to run every speaker in this package with real headroom, in a footprint that fits under a console without a fight.

• Channels: 4
• Power @ 4 ohm: 50W x 4, or 150W x 2 bridged
• Power @ 2 ohm: 75W x 4
• Amplifier class: Class-D
• Frequency response: 20 Hz – 20 kHz
• Signal processing: User-selectable high-pass/low-pass filters, channel 1&2 and 3&4 independently switchable
• Control: Built-in LCD for manual control; Easy Tune feature via Fusion® Audio app when paired with a DSP-equipped Fusion stereo
• Rating: IP67 (excluding cables), SAE J1171 ignition protected
• Operating voltage: 9–16 VDC
• Fuse rating: 35A (AFS, AGU, or MaxiFuse™ recommended)
• Dimensions: 10.43" W x 4.9" D x 1.86" H
• In the box: Amplifier, four mounting screws, documentation

4. JL Audio® Premium 6 AWG Power Connection Kit — XMD-PCS50A-1-L10 (010-13417-00)

True AWG-spec, tinned pure OFC copper wiring sized for amplifier installs within 10 ft of the battery — ideal for most center consoles, pontoons, runabouts, and towboats.

• Power wire: Red 6 AWG tinned, 2 ft (dual power rings) + 8 ft (single power ring)
• Ground wire: Yellow 6 AWG tinned, 10 ft
• Remote turn-on wire: Blue 16 AWG, 18 ft
• Circuit breaker: 50A marine circuit breaker (XMD-MCB-50), manual reset, no fuses to replace
• Rating: IP67, withstands full immersion to 1 meter; SAE J1171 ignition protected
• Connection points: Stainless steel, corrosion-resistant

5. JL Audio® 4-Channel 6' Marine Audio RCA Cable — XMD-WHTAIC4-6 (010-13473-00)

A 4-channel marine-grade RCA interconnect running the RA210's outputs to the AP300/4's inputs — the correct channel count for a single run, no splitters required.

• Channels: 4
• Length: 6 ft
• Build: Marine-grade construction for saltwater environments

6. Hide-Away AM/FM Antenna

A low-profile, hide-away AM/FM antenna built to withstand real saltwater exposure and wired to plug straight into the RA210's standard antenna input.

What's Included

• 1x Fusion MS-RA210 Stereo (010-02250-00)
• 4x JL Audio M6-650X-S-GwGw 6.5" Coaxial Speakers (010-03090-00) — 2 pairs
• 1x JL Audio AP300/4 Compact 4-Channel Amplifier (010-03429-00)
• 1x JL Audio Premium 6 AWG Power Connection Kit — XMD-PCS50A-1-L10 (010-13417-00)
• 1x JL Audio 4-Channel 6' Marine Audio RCA Cable — XMD-WHTAIC4-6 (010-13473-00)
• 1x Hide-Away AM/FM Antenna

Note: Speaker wire and mounting fasteners for non-standard cutouts are not included. The included power kit is sized for amplifier locations within 10 ft of the battery — if your install run is longer, a longer-gauge kit (e.g. XMD-PCS50A-1-L20) is recommended instead. As with any amplified system, confirm your battery and charging system can support the additional current draw before installation.