MB Quart Stereo / Receiver

MB Quart Stereos & Receivers: Built for the Elements

When the goal is premium audio that performs as hard as you do — on the water, the trail, or the open road — MB Quart stereos and receivers stand apart. Rooted in a legacy that dates back to 1962, MB Quart is a high-end audio brand known for its elaborate and distinctive designs and rich sound quality, originally founded producing professional studio microphones and headphones in Obrigheim, Germany. Today, that same engineering DNA powers a lineup of rugged source units purpose-built for environments where ordinary consumer electronics simply fail.

Designed for Marine, Powersports, and Off-Road Environments

MB Quart's stereo and receiver lineup is not a one-size-fits-all afterthought. These units are engineered from the ground up for demanding outdoor applications. MB Quart builds IPX67-rated stereos for boats, UTVs, and rugged terrain, featuring high-contrast LED screens and customizable RGB lighting. That IPX67 rating means the units are protected against full immersion in water — a critical spec for marine installs and powersports riders who encounter rain, spray, and mud on every outing. Units meet or exceed IPX67 requirements for water and dust proofing — waterproof, dustproof, snowproof, and shockproof.

Flagship Models: GMR and MDR Series

MB Quart's receiver catalog centers on two key families, each optimized for different installation scenarios:

• GMR7V1 & GMR Series: The MB Quart GMR7V1 is a 7-inch waterproof touchscreen source unit featuring Apple CarPlay, with a built-in auxiliary switching system, RGB lighting controller, AM/FM/WB/Bluetooth, dual-zone audio control, dual video inputs, one video output, two USB inputs, one auxiliary input, and pre-amp outputs.
• MDR2.0 Series: The MB Quart MDR2.0 is a 160-watt multimedia receiver with AM/FM radio and Bluetooth input, featuring a 160-watt internal amplifier and USB connectivity. The unit also features AM/FM, Weather Band, Bluetooth streaming audio, and USB input options — first unveiled at the IBEX marine trade show — and is Android compatible.

Smart Features for Connected Riders and Boaters

MB Quart doesn't just build tough — these receivers are genuinely smart. The 7-inch waterproof source unit supports wireless Apple CarPlay and Android Auto, dual-zone audio, an RGB controller, and auxiliary switching for marine, ATV, UTV, and RV applications. Dual-zone audio control is especially valuable in larger installs — such as pontoon boats or side-by-side UTVs — where different areas of the vehicle benefit from independent volume and source management. The inclusion of both wireless CarPlay and Android Auto means riders and boaters can navigate, stream music, and take calls hands-free without fumbling with a wet phone.

Part of a Complete Audio Ecosystem

Consumers of MB Quart products can experience a wide range of audio solutions for powersports and marine machines, and MB Quart continues to expand with OEM partners that include Polaris and Bobcat, delivering audio products that integrate seamlessly into those vehicles. This means an MB Quart stereo receiver is rarely a standalone purchase — it is the control center for a full system including speakers, amplifiers, and subwoofers, all engineered to work in harmony. Through research, innovation, and a dedication to the highest quality, MB Quart continues to grow its premium performance audio product lines.

Whether you're outfitting a center console fishing boat, a Polaris RZR, or a Jeep hitting the back country, an MB Quart receiver provides the rugged reliability and feature-rich connectivity to keep your music going mile after mile. Explore the full MB Quart brand page or browse all Stereo / Receiver options to find the right source unit for your build.