MB Quart Launches Dedicated Nautic Marine Multimedia & Digital Source Units and Waterproof Speakers at IBEX

Chicago, IL – Maxxsonics USA released information on several new product platforms for marine application during the IBEX show in Florida.

This year, MB Quart has two new platforms and three new products that are being launched during the IBEX show in Tampa, Florida. These new platforms are critical to marine and powersports, specifically for boat builders, manufacturers and marine audio system integrator.

First, a new multimedia source unit, the GMR-LED and a Mechless source unit, also known as a digital media receivers, model number MDR2.0. A third product is a new marine speaker added to the MB Quart marine speaker line, model number NF1-116.

Shipping December 2018
$349.99 MSRP
Shipping Q1 2019
$149.99 MSRP
Shipping Q1 2019
$99.99 MSRP

Pricing, Specifications and Performance Subject to Improvement without Notice


The GMR-LED is an OFF-ROAD & Marine Multimedia Source Unit with 160 Watt internal amplifier features AM/FM/Bluetooth®, USB. This is a full Mobile Entertainment Controller for a boat, RV or off-road vehicle.

Multimedia Nautic Marine Source Unit GMR-LED
Multimedia Nautic Marine Source Unit GMR-LED

Brian Sherman, Director of Business Development for Maxxsonics USA said during an IBEX meeting, “MB Quart has been busy this year fine tuning the marine products. These new products are perfect for custom builders and system installers working marinas around the world.”

Among the key features boat builders and installers are excited for is the Dual Audio Zone Capability which allows two different volume areas of the boat to be controlled independently, such as passenger area and tower speakers. Also on the topic of sound control is the independent subwoofer level control and onboard 8-Band graphic equalizer.  The unit also features weather band so often crucial in heavy weather and coastal areas.


marine radio system
MB Quart OFF-ROAD & Marine Multimedia Source Unit

GMR-LED Features & Benefits

  • OFF-ROAD & Marine Multimedia Source Unit
    160 Watt AM/FM/Bluetooth®, USB, Mobile Entertainment Controller
  • Bluetooth™ Connect & Quick-Pair
    Quick and secure pairing of devices with your music library with album art displayed
  • USB Control
    Easily connect smartphones, portable media devices and streaming services. iPod control allows full Apple® connectivity
  • Dual Audio Zone Capability
    Control volume in two different areas independently, such as passenger area and tower speakers
  • Maximum Connectivity
    Connect external amplifiers for speakers and subwoofers with six channels of connectivity
  • Media Screen
    On board 3.5 inch high-contrast LED screen to view media artwork and external camera input
    Marine certified to IPX67 with large waterproof buttons

See additional details on the GMR-LED on the MB Quart Quarter Note Blog


MB Quart Nautic Marine Mechless Source Unit

With its built-in 4 channel amplifier, boat builders will flock to the new MB Quart MDR2.0. The unit delivers 50 watts x 4 channels to deliver power to a full system. Control is the key theme for this unit,  From the stand point of media, the unit is both Apple and Android compatible and from the perspective of outputs the 4 volt RCA output can drive multiple external amplifiers allowing marine audio system designers to install speakers throughout the vessel including tower speakers.

MDR2.0 Features & Benefits

  • OFF-ROAD & Marine Multimedia Mechless Source Unit
    200 Watt AM/FM/Bluetooth®, Apple Control and Android Compatible
  • High Power
    Internal 4 channel amplifier delivers 200 watts maximum power with 4 x 50 watts to power full range speakers
  • Maximum Connectivity
    4volts RCA outputs can run external amplifiers to power speakers and subwoofers

See the additional details on the Mechless Receiver (MDR2.0) on the MB Quart Quarter Note Blog


Since the mid 1980’s, MB Quart has been designing and innovative speakers for marine installations. This new speaker system takes decades of experience and puts it into a great sounding, easy to install pair of speakers. The system features water resistant components to the IPX67 standard, including midrange cones, Neo-Mylar tweeters and rust resistant connectors.

NF1-116 Features & Benefits

  • Neo-Mylar Tweeters
    The Neo-Mylar marine tweeters, which is integrated into the grills, delivers a superior sound quality as well as the added benefit of additional output
  • 6.5 inch Mica Filled Polypropylene Cone
    The poly speaker will produce deep bass tones with musical midrange frequencies
  • Internal 12dB Crossover
    Crossover is completely sealed against water and sea spray
  • UV Protected
    Special epoxy finish resists yellowing or sun fade

See the additional details on the NF1-116 Nautic 6.5 inch speakers on the MB Quart Quarter Note Blog

For more information on these products for the marine industry, contact your Maxxsonics representative or email info@maxxsonics.com