Marine audio gear has to survive sun, salt spray, and vibration while still sounding good, so I went straight to BOSS Audio's actual MCKGB350B.6 listing to see what the weatherproof gauge receiver and speaker bundle really includes.
The MCKGB350B.6 is BOSS Audio's weatherproof marine gauge receiver and speaker package, currently listed at $203.99. The bundle pairs the compact IPX6-rated MGR350B gauge-style head unit with one pair of MR6B 6.5-inch full-range marine speakers, giving you a complete source-plus-speakers setup in a single purchase.
The MGR350B head unit is built into a 3-inch cutout diameter gauge-style housing with a polished stainless steel bezel, designed to mount alongside a boat's existing engine gauges rather than taking up dash space meant for a full-size stereo. It's rated IPX6 for weatherproof and dustproof protection and uses a conformal coated PCB to resist corrosion from salt air and moisture.
The receiver covers AM/FM with a NOAA weather band tuner and RDS tuner, plus switchable US and EU tuner frequencies for boaters who travel internationally. Connectivity includes Bluetooth A2DP audio streaming (for Spotify, Pandora, and other apps), a rear USB port, and a rear aux input — but no CD or DVD player, keeping the unit compact. It stores 12 FM presets and includes a selectable preset EQ.
The receiver delivers 60 watts × 4 channels with a total power output rating of 240 watts, and includes front, rear, and subwoofer switchable pre-amp outputs plus dedicated subwoofer control — useful if you plan to add an amplifier or powered sub down the line. Illuminated soft-touch buttons and zero current draw memory round out the control layout.
The included pair of MR6B 6.5-inch full-range marine speakers use a composite basket, resin-treated cloth surround, and a dual-cone polypropylene design rated at 180 watts max / 90 watts RMS per pair. The poly carbon cone and rubber surround are built specifically to withstand marine conditions rather than being a standard car-audio speaker relabeled for boats.
What stands out:
Worth knowing:
Check our BOSS Audio coupon page for current verified codes and deals on the MCKGB350B.6 and other BOSS Audio marine packages.
For boaters who want a weatherproof, gauge-mountable stereo with genuine marine-rated speakers rather than a repurposed car unit, the MCKGB350B.6 bundles the NOAA tuner, Bluetooth streaming, and IPX6 protection boaters actually need into one straightforward $203.99 package.
Ready to check current pricing? See the BOSS Audio MCKGB350B.6 here.
The receiver is IPX6-rated for weatherproof and dustproof protection, suited for open boat installations.
No — it plays via Bluetooth, USB, MP3, and AM/FM/NOAA weather band, with no CD or DVD player.
One pair of MR6B 6.5-inch full-range marine speakers rated 180W max / 90W RMS per pair.
240 watts total, with 60 watts × 4 channels and switchable front/rear/sub pre-amp outputs.
