Gravity MGR-207BT Single DIN Marine Bluetooth Receiver

The Gravity MGR-207BT is a Single DIN marine-style audio receiver designed for boats and other outdoor-oriented vehicle installations. It combines AM/FM listening with Bluetooth streaming, USB playback, Micro SD media playback, and a 3.5 mm auxiliary input. This makes it a practical source unit for replacing a basic radio or adding more listening options to an existing marine, ATV, RV, or motorcycle audio system.

Its internal MOSFET amplifier is rated at 22 watts RMS per channel across four channels, with 50 watts peak per channel. That output is intended to drive four compatible speakers directly, while providing a straightforward foundation for a compact entertainment system. Bluetooth audio streaming lets users play music from compatible smartphones or tablets without a physical audio cable.

The MGR-207BT also supports Bluetooth hands-free calling with the included microphone. Its front-panel USB input supports FLAC playback, giving users a lossless-file option from compatible USB storage. An auxiliary input and Micro SD card slot add further ways to play personal music libraries.

For outdoor visibility, the receiver uses a glare-resistant white LCD display with ID-3 tag information for supported music files. Variable-color illumination offers up to five selectable tones, while illuminated controls help make common functions easier to locate. Repeat and random playback functions are included for compatible media sources.

Marine-oriented construction includes a conformal-coated circuit board intended to help protect internal electronics from moisture and environmental exposure. The MGR-207BT is suited to standard in-dash DIN installations where a compact receiver, four-channel speaker output, and multiple music sources are needed. It can serve as the central source component before adding compatible speakers or external system components.

Key Features

• Four-Channel MOSFET Amplifier: Provides 22 watts RMS and 50 watts peak per channel for direct connection to compatible speakers.
• Bluetooth Audio and Calling: Streams music wirelessly and supports hands-free calls with the included microphone.
• AM/FM Tuner: Provides access to local radio programming when streaming or stored media is unavailable.
• USB FLAC Playback: Supports lossless FLAC music files from compatible USB storage devices.
• Multiple Media Inputs: USB, Micro SD, and 3.5 mm auxiliary inputs accommodate several audio-source options.
• Conformal-Coated Circuit Board: Helps protect the receiver's internal electronics from moisture exposure in marine-oriented applications.

Design & Installation

The MGR-207BT uses a standard in-dash DIN chassis with a white faceplate, glare-resistant white LCD display, and illuminated front-panel controls. Its conformal-coated circuit board is the product's stated marine-oriented protection feature. Variable-color illumination offers up to five tones for the receiver controls.

Plan installation around a standard Single DIN dashboard opening, four compatible speaker connections, power wiring, and a compatible radio antenna. Confirm dashboard clearance, mounting hardware needs, connector compatibility, and the vehicle or vessel's electrical requirements before installation. For exposed marine or powersports locations, place the receiver where the face and connections receive appropriate protection from direct water exposure.