Marine amplifier MX500/1

The MX500/1 amplifier package includes:

One (1) amplifierFour (4) stainless steel mounting screwsOne (1) user manual

The MX500/1 amplifier is a 500-watt Class D monoblock subwoofer amplifier.

Yes, this amplifier has an IPX7 water resistance rating. This means it has been tested to withstand immersion in water up to 1 meter (3.28 feet) deep for a maximum of 30 minutes, provided the control panel cover is properly installed.

Although the amplifier is designed to be water-resistant, it must never be submerged underwater for extended periods or subjected to activities that would create pressure on it exceeding its depth rating. It must also not be exposed to high-pressure water jets.

This amplifier is designed to operate with 12-volt negative-ground electrical systems.

No, using this product in systems with a positive ground and/or voltages other than 12V may damage the product and will void the warranty.

The minimum recommended cable size for the positive power wire (+12V) and negative ground wire (GND) of this amplifier is 4 AWG.

Yes, an appropriate fuse (sold separately) is vital for the safety of the vehicle or vessel. If the amplifier is the only device connected to this main power wire, a 50A fuse is recommended.

The fuse must be installed within 45 cm (18 inches) of the battery's positive connection.

The negative black ground wire must be connected to a clean, solid metal ground point near the amplifier. This can be the metal chassis ground if available. If no metal chassis ground is available, this connection may need to be made to the battery’s negative terminal. All ground connections (source unit and amplifiers) must be made at the same point.

The blue remote start wire must be connected to the positive remote start output (+12V) of the source unit. If your source unit has no dedicated output, the amplifier’s start wire can be connected to +12V via a switch powered by a circuit switched by the ignition.

Yes, you can connect the RCA input jacks of the amplifier to the preamp-level output jacks of the source unit. The amplifier automatically sums the stereo signals into mono for its internal amplification section. If you are using a single RCA low-level input connection, use a Y-adapter to split the mono signal and connect it to both the left and right RCA inputs.

Yes, if your source unit does not provide preamp-level signal outputs, you can splice the speaker output wires from the source unit to a pair of RCA plugs for the high-level input pair, or use the JL Audio ECS Speaker Wire to RCA adapter (XD-CLRAIC2-SW). Ensure correct polarity is maintained when making the high-level input connections.

The amplifier's controls and settings are located on the lower panel, under a watertight protective cover. To access and adjust them, remove the four Phillips screws from the central panel.

Yes, the subwoofer output level of the amplifier can be controlled from the front of the vehicle or vessel with an optional remote level controller (sold separately).

For standard installations (dry environments), you can use the RBC-1 controller. For applications exposed to moisture, the M-RBC-1 is recommended. Connect the remote control plug to the RJ11 input socket mounted on the amplifier loom.

It is recommended to install the amplifier in a dry, well-ventilated location that does not interfere with other factory-installed electronic equipment. If a dry environment cannot be found, a location not exposed to heavy spray may be used. Do not install the amplifier in the engine compartment or in areas of extreme heat.

Protect all system wiring from sharp edges (metal, fiberglass, etc.) by routing it carefully, securing it, and using grommets and sleeves where necessary. Do not route system wiring outside or under the vehicle/vessel. Secure all wiring as needed using cable ties or clamps to protect it from moving parts and sharp edges.

No, this product is not certified or approved for use in aircraft.

A "monoblock" amplifier is an amplifier designed to power a single channel, typically a subwoofer. The MX500/1 amplifier is a Class D monoblock amplifier rated at 500 watts, optimized for subwoofers.