Stage 4 Audio Package - RA210/M6-770x/AP300

Stage 4 Audio Package: Fusion RA210 + JL Audio M6-770X Speakers + AP300/4 Amplifier

This is the best pre-built audio package we offer. It pairs the Fusion® MS-RA210 head unit with four JL Audio® M6-770X-S-GwGw 7.7" coaxial speakers, run through a dedicated JL Audio AP300/4 amplifier. The correct-gauge power connection kit and RCA cable are included to wire it properly, along with a hide-away AM/FM antenna.

Past this point, system requirements get specific enough — multiple zones, subwoofers, higher channel counts — that we build a custom package instead. Reach out and we'll put one together for your boat.

Why This Combo Works

The M6-770X uses a 7.7" driver, giving it more cone area and low-frequency output than the 6.5" M6 speaker, backed by the same DMA-optimized woofer, matched silk dome tweeter, and multi-order crossover network found across the M6 line. At 100W RMS and a recommended amplifier range of 40–200W per channel, these speakers genuinely need real amplification to perform at their best — which is exactly the role the AP300/4 fills: a compact, IP67-rated 4-channel Class-D amplifier delivering 50W x 4 into 4 ohms (up to 150W x 2 bridged for even more headroom). The RA210's Multi-Zone™ output pairs naturally with four speakers split across two zones, and its built-in DSP plus JL Audio's Easy Tune feature streamlines the whole setup. The premium 6 AWG power kit and marine-grade RCA cable round it out so the amp is wired correctly from the start, and the hide-away antenna covers AM/FM reception 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, ideal for splitting this package's four speakers across helm and cockpit
• 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® M6-770X-S-GwGw 7.7" Coaxial Speakers — Qty 4 (010-03073-00)

JL Audio's flagship M6 line in its 7.7" driver size, finished with gloss white sport grilles. Built to yield unmatched frequency response and linear performance at every listening level, not just adequate output at moderate volume.

• Configuration: 2-way coaxial with DMA-optimized woofer and matched silk dome tweeter
• Woofer: Injection-molded, mica-filled polypropylene cone
• Tweeter: 1" silk dome
• Continuous power handling (RMS): 100W per speaker
• Sensitivity: 91.0 dB SPL @ 1W/1m
• Frequency response: 45 Hz – 25 kHz (±3 dB)
• Nominal impedance: 4 ohms
• Recommended amplifier power: 40–200W per channel RMS
• Speaker connections: Spade connectors
• Mounting: 6.25" mounting hole, 6.92" bolt hole circle, 3.32" mounting depth clearance, 1.08" 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 that gets every M6-770X speaker in this package into its real performance range, 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 M6-770X-S-GwGw 7.7" Coaxial Speakers (010-03073-00) — 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. With four speakers on a single AP300/4, plan your channel and zone wiring before running cable. As with any amplified system, confirm your battery and charging system can support the additional current draw before installation. Need more than this — extra zones, a subwoofer, more channels? Contact us and we'll build a custom package for your boat.