The
JL Audio NRX-300 is
an advanced, NMEA 2000 certified wired marine remote control and data repeater engineered by Garmin. It is built to extend full stereo management and zone control to any point on your boat, such as the swim platform, flybridge, or bow.
Here is the detailed description and technical breakdown for this unit.
The JL Audio NRX-300 allows boaters to enjoy localized audio control from any audio zone on board. Rather than running back to the main helm to change a song or lower the volume, you can place this compact remote exactly where people gather.
The remote features a highly visible display, a heavy-duty rotary volume encoder, and dedicated buttons for direct, tactile tracking adjustments without digging through confusing menus. Beyond controlling your music, it integrates with your boat's network to act as a smart information screen. It can read live vessel information directly from other onboard electronics, giving you a secondary dashboard anywhere you install it.
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Optically Bonded Screen: Features a 2.6-inch multi-line monochrome LCD screen. The glass is optically bonded, meaning the viewing layers are fused into a single piece. This completely prevents internal fogging from high moisture and ensures excellent readability under bright, direct sunlight.
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True-Marine Ruggedness: Rated with an IPX7 waterproof armor coating on the front surface. It has been heavily tested to survive extreme marine environments, including salt fog, direct rain, heavy water spray, vibrations, and continuous UV exposure.
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Multi-Zone Control Matrix: Capable of controlling up to 4 distinct audio zones simultaneously or independently. You can select global audio sources, skip tracks, and adjust localized volume zones depending on what your connected main stereo allows.
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NMEA 2000 Smart Repeater: Functions as a smart network data reader. When connected to your boat's NMEA 2000 network, it pulls live data from other sensors to display information like wind speed/angle, water depth, boat speed, vessel heading, position, ETA, and water temperature.
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Low Network Load: Operates with a Load Equivalency Number (LEN) of 3 (150 mA max draw). It pulls its power and data through a single wired NMEA 2000 drop cable, eliminating the need to splice separate power wires behind the dash.
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Physical Dimensions: Compact, small-footprint shape measuring 2.76 inches (70 mm) High x 4.33 inches (110 mm) Wide x 1.97 inches (50 mm) Deep. The shallow depth makes it easy to mount in tight bulkheads or areas with restricted cavity room behind the fiberglass.
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Electrical Parameters: Supports standard marine input voltages ranging from 10.8V to 16V DC. It operates efficiently across temperatures from 32°F to 122°F (0°C to 50°C).
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System Hardware Compatibility: Specifically engineered to pair seamlessly with next-generation platforms like the JL Audio A60 and A60-H hideaway receivers. Note that this controller is explicitly not compatible with older legacy JL Audio MediaMaster series head units.
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The NRX-300 wired remote assembly
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A flush-mounting foam gasket
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4 mounting screws with 2 clip-on screw covers
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1 native NMEA 2000 T-connector for network linking
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Full system documentation and manual booklet
| Physical dimensions (Height) |
2.76" (70 mm) |
| Physical dimensions (Width) |
4.33" (110 mm) |
| Physical dimensions (Depth) |
1.97" (50 mm) |
| Control surface dust/water rating (when properly installed) |
IPX7 |
| Operating temperature range |
32° F to 122° F (0° C to 50° C) |
| Current draw (max) |
110 mA |
Electrical Features
|
| Power Input |
10.8-16 VDC |
Stereo Features
|
| Display size |
2.6" (66 mm) |
| Display type |
optically bonded monochrome LCD |
Sources
|
| Supported sources |
Derived from host source unit
|
Networking & Connections
|
| NMEA 2000® ports |
1 |
| NMEA 2000® LEN |
3 (150 mA) |
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