🔊 BOSS MGR300B Marine Stereo – Compact Control, Big Marine Sound
The BOSS MGR300B Marine Stereo is the perfect addition to any boat looking for simple, rugged, and feature-packed audio control. Designed for marine environments, it offers powerful playback, Bluetooth streaming, and compact installation. Whether you're cruising offshore or relaxing at the dock, this stereo brings dependable performance to every adventure.
With its intuitive design and marine-grade durability, the MGR300B delivers exactly what boaters need: excellent sound without hassle. From Bluetooth to wired options, this stereo makes it easy to enjoy music on the water.
⚡ Built for the Marine Life
Marine environments are unforgiving, but the MGR300B is built to handle it all. Its IPX6-rated front panel protects against salt, spray, and water intrusion. UV coating helps the surface resist sun damage, so the unit stays looking good over time.
Whether your boat faces intense sun or stormy weather, the MGR300B keeps playing. Its marine-specific components are sealed and protected, ensuring your stereo keeps working trip after trip.
🔑 Key Features at a Glance:
-
Bluetooth audio streaming and wireless control
-
AM/FM tuner with switchable US and European frequencies
-
USB port for music files and phone charging
-
Rear AUX input for external devices
-
IPX6-rated waterproof front panel
-
Compact gauge-style design fits tight spaces
-
UV-resistant build for long-lasting use
-
RCA preamp outputs for system expansion
This stereo is ready for center consoles, pontoons, fishing boats, and personal watercraft.
🎵 Easy Streaming and Sound Control
The BOSS MGR300B lets you take full control of your sound system. Stream directly from your phone with Bluetooth or connect a device through the AUX or USB input. It supports playback from MP3 and WMA files for added flexibility.
With backlit controls and an easy-to-read screen, you can operate the system at any time of day. Adjust volume, switch sources, and manage playlists with ease, even in bright sunlight or low-light conditions.
🌊 Compact Design for Tight Installations
Space is limited on boats, but the MGR300B’s 3-inch gauge-style mount solves that. It installs cleanly into dashboards or helm consoles. The wiring harness and included mounting hardware make installation simple for DIYers and professionals alike.
Want to upgrade later? RCA outputs let you add marine amplifiers or subwoofers. Grow your system without changing the head unit.
🔧 Marine-Ready from Inside Out
This stereo isn't just waterproof on the outside. Internally, it’s protected with conformal-coated circuitry that resists moisture and corrosion. The UV-protected shell also helps prevent yellowing and cracking under constant sun exposure.
The wide operating voltage range supports both 12V and 24V systems. That makes it ideal for a variety of marine vessels, from jet skis to large sport boats.
Looking for other options? Check out our full marine stereo collection for more head units, remotes, speakers, and amplifiers.
🌟 Pair It with Marine Window Tint for Extra Protection
Sunlight and heat not only damage interiors—they also harm electronics. Add car window tinting to your vessel’s cabin to reduce glare, lower heat, and extend the life of your equipment.
Marine window films improve comfort, protect electronics, and keep your stereo system from overheating. They’re designed to resist salt and moisture while offering long-lasting performance.
🚤 Installed and Supported by Audio Jam Pros
At Audio Jam, our certified installers make sure your marine audio system is set up right. We handle everything from wire routing and sealing to tuning and waterproofing.
Whether you're upgrading a small skiff or rigging a sport cruiser, our team provides expert marine audio installs. We also test the full system before delivery for worry-free performance.
Audio Jam
227 Governor Place
Bear, DE 19701
📞 302-832-2868
🕒 Monday – Saturday, 10 AM – 6 PM
Stop by or call today to upgrade your marine stereo system!
❓ Frequently Asked Questions (FAQ)
Q1: Can I stream music wirelessly to the MGR300B?
Yes, it supports Bluetooth streaming from smartphones and tablets.
Q2: Is this unit truly waterproof?
The MGR300B is IPX6-rated, making it water-resistant and suitable for marine environments.
Q3: Can I add an amplifier later?
Yes. The unit includes RCA preamp outputs for easy system expansion.
