BOSS Audio Systems MCKGB350W.6 Marine Gauge Receiver and Speaker Kit

In this review the BOSS Audio Systems MCKGB350W.6 is evaluated as a budget-minded marine audio kit for boat owners who want reliable cruising sound without a mechanical disc player. The package pairs an IPX6-rated gauge receiver with two 6.5 in full-range marine speakers and a marine dipole antenna, and the single biggest reason to consider it is the combination of weatherproofing and modern connectivity such as Bluetooth and USB playback in a compact, affordable kit aimed at day boats and smaller vessels.

Key Features

• Weatherproof receiver: The IPX6-rated receiver is protected against splashing water so it can be installed in exposed gauge locations with less worry about moisture damage.
• Bluetooth audio streaming: Stream music and control apps like Spotify or Pandora from a smartphone for hands-free playback while underway.
• Multiple inputs and charging: A front USB port and auxiliary input let you play stored MP3s or connect non-Bluetooth devices while the USB supplies charging for mobile devices.
• NOAA weather band tuner: Built-in weather band and AM/FM tuner keep you informed of marine forecasts and local stations without extra hardware.
• Weatherproof speakers: The pair of 6.5 in MR6W speakers include UV coatings and weatherproofing to resist corrosion and sun exposure on the boat.
• Expandability: Front/rear and subwoofer outputs allow adding more speakers or a sub for greater sound coverage on larger boats.

Who It's For

This kit is best for boat owners building a simple, cost-conscious audio system for a small to medium boat, center console, or pontoon who value wireless streaming and a weather-resistant install. The compact receiver dimensions and gauge-style design suit installations where space behind the dash is limited.

It is less suitable for audiophiles seeking high-end fidelity, heavy waterproofing warranties beyond splash protection, or those who require an optical or dedicated marine DSP. Professional installation is recommended to ensure proper sealing and wiring, especially in saltwater environments.

Pros & Cons

Pros

• Good value for money with modern features like Bluetooth and USB playback at an affordable price point.
• IPX6-rated receiver and weatherproof speaker coatings reduce risk from splashes and UV exposure.
• NOAA weather band and AM/FM tuning provide useful safety and entertainment functions while underway.
• Expandable outputs let owners add rear speakers or a subwoofer for fuller sound.

Cons

• Some users report durability issues and occasional condensation behind the screen, so long-term reliability can be mixed.
• It does not include a CD player, which is intentional but may disappoint buyers who want legacy media options.

Specifications

Receiver model	MGR350B gauge-style receiver
Receiver dimensions	3.3 x 4.5 x 4.5 in
Receiver weight	2.1 lbs
Speaker size	6.5 in full-range MR6W pair
Speaker dimensions	7.5 x 7.5 x 3.4 in
Speaker weight	3.3 lbs (pair)
Weather protection	IPX6 receiver rating; UV and weatherproof speaker coatings

Our Verdict

The BOSS MCKGB350W.6 kit is a practical, budget-focused marine audio solution for day boats and small vessels that need modern streaming, USB playback, and basic weather protection. It represents good value for owners who prioritize wireless convenience and compact gauge-style installation, though buyers should accept that long-term durability reports are mixed and professional installation is advised for best results.

Frequently Asked Questions

Does the kit include a CD player?
No. The receiver is mech-less and does not include a CD player; it supports Bluetooth, USB, auxiliary input, and AM/FM/NOAA weather band tuning.

Is the receiver fully waterproof?
The receiver is IPX6-rated for protection against splashing water, which is suitable for many exposed installs but is not a guarantee of complete waterproofing under immersion.

Can additional speakers or a subwoofer be added?
Yes. The receiver offers front/rear and subwoofer outputs to expand the system with extra speakers or a sub for fuller sound.