XDM600/1 Marine Amplifier

For positive power (+12VDC) and ground (GND) connections, a 4 AWG cable is required. For the remote activation connection, a 18 to 12 AWG cable is sufficient.

A suitable 50A fuse must be installed on the positive power wire within 45 cm (18 inches) of the battery’s positive terminal. For ABYC and NMEA applications, circuit protection must be within 18 cm (7 inches) of the battery unless the cable is enclosed in a housing or conduit.

The JL Audio XDM600/1 amplifier accepts an input voltage of 200 mV to 4 V RMS.

Yes, if only one subwoofer channel signal is available, it is recommended to use a Y-adapter to power both inputs (CH. 1 and CH. 2) of the amplifier.

The pre-amplified outputs (Preout 1 and Preout 2) provide the same signal as the one connected to inputs CH. 1 and CH. 2. They are not affected by the amplifier's low-pass filter and can be used to feed the signal to another amplifier.

This product must only be used with 12-volt negative-ground electrical systems. It is not certified or approved for use in aircraft.

It is recommended to install the amplifier in a dry, well-ventilated location that does not interfere with factory-installed systems. Avoid installing it in the engine compartment, in areas of extreme heat, or where it would be directly exposed to the elements.

Green flashing: The amplifier is powered on, audio output is muted.Green solid: Normal operation, audio output active.Red solid: Safe mode, overheating condition, audio output reduced. The amplifier returns to normal operation when the temperature becomes safe again.Yellow solid: Safe mode, overcurrent condition, audio output muted. This may indicate a short circuit in the speaker/cable or low impedance.LEDs off: The amplifier is powered off (unexpectedly), low-voltage condition (when battery voltage or remote activation drops below 10V). It returns to normal operation when voltage exceeds 11V.

The amplifier offers three activation modes:

Remote: Preferred activation via a switched +12V source or the activation output of your source/interface OEM unit.Offset (DC offset detection): Turns on by detecting a small DC signal in the OEM audio outputs and turns off after the signal is removed. Designed for high-level signals (speaker) only.Signal (signal detection): Turns on by detecting full-band OEM audio signals and turns off after the signal is removed (within 30 seconds).Using DC offset or signal detection methods converts the "Remote" terminal into a +12V activation output.

Yes, the amplifier is compatible with an optional remote level controller such as the HD-RLC or MHD-RLC. Multiple amplifiers can be controlled from a single HD-RLC using a non-duplex telephone line splitter and multiple telephone cables.

The minimum impedance load supported by the subwoofer output is 2 ohms (≥2 ohms).

Route all system cables carefully away from moving parts and sharp edges. Secure them with cable ties or clamps and use grommets and sleeves where necessary to protect them from sharp edges.

Yes, the JL Audio XDM600/1 amplifier is equipped with an infrasonic filter. This filter attenuates frequencies below 30 Hz with a 24 dB/octave slope. It is designed to preserve amplifier power and protect the subwoofer from inaudible ultra-low frequencies that can cause excessive excursion.

The input filter optimizes amplifier performance based on the environment. Select the "Car" setting for most installations (automotive or marine). Select the "Boat" setting if you experience interference from high-current mechanical switches/devices, common in marine environments. The "Off" option disables the filter.

The amplifier is equipped with an adjustable low-pass filter from 50 to 500 Hz. The filter slope can be selected between 12 dB/octave and 24 dB/octave, allowing precise adjustment of the cutoff frequency for the subwoofer.

Yes, before cutting or drilling, it is imperative to check for any obstacles behind mounting surfaces to avoid damaging the vehicle or boat components.

The JL Audio XDM600/1 amplifier has dimensions of approximately 21.6 cm in length, 17.8 cm in width, and 5.2 cm in height.

This amplifier is specifically designed as a monoblock subwoofer amplifier. It is optimized to power subwoofers with a minimum impedance of 2 ohms. It is not intended to power full-range speakers or tweeters.

To ensure the durability and proper operation of your JL Audio XDM600/1 marine amplifier, follow these installation recommendations:

Location: Install the amplifier in a dry, well-ventilated area. Avoid the engine compartment, areas of extreme heat, or any location where it would be directly exposed to the elements. Safety: Before any installation, turn off the audio system and disconnect the battery from the audio system. Mounting: Securely mount the amplifier to prevent damage or injury in rough conditions. Wiring: Carefully route all system cables away from moving parts and sharp edges. Secure them with cable ties or wire clamps and use grommets and sleeves as needed to protect them. Electrical protection: A suitable fuse or circuit breaker on the main power cable is essential for safety. It must be installed within 45 cm (18 inches) of the battery’s positive connection. For ABYC and NMEA applications, circuit protection is required within 18 cm (7 inches) of the battery unless the cable is enclosed in a housing or conduit. Professional installation is recommended to ensure compliance and safety.

The JL Audio XDM600/1 amplifier offers multiple turn-on modes and accepts a specific input signal range:

Turn On Modes:
Remote: This is the preferred mode. The amplifier activates via a switched +12V circuit or the turn-on output of your source unit or OEM interface.
Offset (DC offset detection): This automatic mode activates the amplifier by detecting a small DC offset in the OEM audio outputs. It turns off once the signal is removed. This mode is designed for high-level signals (speaker) only and detects the input signal only on channel 1 (left).
Signal (signal detection): This automatic mode activates the amplifier by detecting full-range OEM audio signals and turns off after signal removal (within 30 seconds).
Note: Using the "Offset" or "Signal" modes converts the "Remote" terminal into a +12V turn-on output.

Input Signal Type:
The amplifier accepts an RCA input voltage of 200mV to 4V on inputs CH. 1 (left) and CH. 2 (right).
If only a single subwoofer channel signal is available, it is recommended to use a Y-adapter to power both inputs.