Is the light and the time suppose to stay on constantly?

Hello Cade, There are 2 links below which should help to answer your question. The 1st will guide you to a user manual. The 2nd is a link to Boss Support https://bossaudio.com/product/mgr300b/ https://support.bossaudio.com/hc/en-us

Can i just hook it up to my amp, instead of using the head unit outputs?

Hello Tanner, Yes, you can use the pre-amp outputs to connect to your amplifier. Please see the link below for more information. https://bossaudio.com/product/mgr300b/

Besides the volume knob, what’s the difference between this and the boss 350b? There are no reviews anywhere

Hi Dedmon9 The 350b has an RDS Tuner, where the 300b doesn't. ("RDS" stands for "Radio Data System" and it allows FM broadcasters to send far more than just an analog audio signal out over the air waves. Using a 57 kHz "subcarrier," stations can transmit digital RDS data for reception by RDS-equipped FM tuners).

BOSS Audio Systems MGR300B Marine Boat Stereo Sound System Head Unit - No CD Player, Bluetooth Audio, IPX5 Rated, USB, MP3, AM/FM Radio Receiver

BOSS Audio Systems MGR300B Marine Boat Stereo Sound System Head Unit - No CD Player, Bluetooth Audio, IPX5 Rated, USB, MP3, AM/FM Radio Receiver

Product ID: 727834405

Details

Audio Encoding
Windows Media
Audio Output Mode
Stereo
Brand
BOSS Audio
Colour
Black
Compatible Devices
Android iPhone
Connectivity Technology
Auxiliary USB

📱Bluetooth wireless streaming

🔊240W powerful output

🌧️IPX5 water & dust resistant

Description

🎶 Command the waves with sound that never quits!

PRO GRADE SOUND POWER - Delivering a robust 240 watts through front pre-amp outputs for crystal-clear marine audio.
BUILT TO BRAVE THE ELEMENTS - IPX5-rated weatherproof design ensures your soundtrack stays uninterrupted, rain or shine.
SEAMLESS BLUETOOTH STREAMING - Wirelessly connect your smartphone or MP3 player to enjoy Spotify, Pandora, and more without missing a beat.
VERSATILE CONNECTIVITY OPTIONS - USB port for charging and music, plus auxiliary input for all your audio devices.
NIGHT READY ILLUMINATED CONTROLS - Navigate your music effortlessly after dark with a sleek backlit control panel.

The BOSS Audio Systems MGR300B is a marine-grade stereo head unit designed for boaters who demand high-quality sound and durability. Featuring 240 watts of output power, Bluetooth streaming, and an IPX5 water-resistant rating, it offers seamless wireless connectivity and rugged performance. With illuminated controls for night use, USB and auxiliary inputs, and a 3-year warranty, this system is engineered to elevate your marine audio experience while withstanding harsh environments.

Specifications

ASIN	B09TRZZJSH
Audio Encoding	Windows Media Audio (WMA)
Audio Output Mode	Stereo
Audio Output Type	Speakers
Box Contents	Mounting kit, rubber cover, instruction manual
Brand	BOSS Audio Systems
Brand Name	BOSS Audio Systems
Colour	Black
Compatible Devices	Android, Smartphone, iPhone
Connectivity Technology	Auxiliary , Bluetooth, USB
Connector Type	RCA
Control Method	App
Controller Type	Android
Customer Reviews	4.4 out of 5 stars 157 Reviews
Format	WMA
Item Dimensions D x W x H	9.5D x 11.5W x 11.5H Centimeters
Item Type Name	BOSS Audio Systems MGR300B Marine Boat Stereo Sound System Head Unit - No CD Player, Bluetooth Audio, IPX5 Rated, USB, MP3, AM/FM Radio Receiver
Item Weight Unit of Measure	1.34 Pounds
Manufacturer	BOSS Audio Systems
Model Number	MGR300B
Network Connectivity Technology	Auxiliary, Bluetooth, USB
Number of Channels	4
Other Special Features of the Product	Built-In Bluetooth
Output Power	240 Watts
Output Wattage	240 Watts
Special Feature	Built-In Bluetooth
Supported Internet Services	Pandora, Spotify
Surround Sound Channel Configuration	4.0
UPC	791489132534
Unit Count	1.0 Count
Wattage	240 Watts
Wireless Technology	AM/FM

Reviews

L**S

Excelente

Muy buen producto; cumple con lo que promete.

28.11.2024

J**S

Good craftsmanship!!

26.12.2025

K**.

Works good

4.06.2024

A**E

Cumple sus funciones y llega rápido 🫡

Es práctico para instalar y no necesitamos gran cosa, cumple sus funciones al cien 😃

13.06.2024

F**S

Decepción

No funciona el radio, trae un corto de fábrica. Y se calienta. Necesito devolverlo para que me lo cambien y no veo opción aquí

15.06.2024

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