JL Audio XDM600/6-24V Marine Amplifier

The JL Audio XDM600/6-24V amplifier is a marine-grade digital full-range amplifier designed specifically for 24V electrical systems. It features six amplification channels, making it ideal for powering multiple pairs of speakers or a combination of speakers and a subwoofer in a marine installation.

This amplifier delivers a total power output of 600 watts RMS. Power distribution per channel is as follows:

6 x 75 watts RMS @ 4 ohms
6 x 100 watts RMS @ 2 ohms
3 x 200 watts RMS @ 4 ohms in bridged mode

The JL Audio XDM600/6-24V is a 6-channel amplifier. This allows you to configure a versatile audio system, for example by powering three pairs of stereo speakers or using some channels for subwoofers in bridged mode.

Designed for the marine environment, this amplifier includes several robustness features:

A corrosion-resistant chassisSealed connectorsConformal coating of PCBs to protect against humidity and saltOptimized for 24 V electrical systems commonly found on many boats.

Yes, the JL Audio XDM600/6-24V is a full-range amplifier. This means it can reproduce the entire audio frequency spectrum, from deep bass to crystal-clear treble, making it suitable for powering any type of speaker, including subwoofers, midranges, or tweeters.

The amplifier accepts low-level input signals via RCA connectors. It is designed to operate with input voltages ranging from 200 mV to 4 V.

The amplifier is stable with a minimum impedance of 2 ohms per channel in stereo mode. In bridged mode, the recommended minimum impedance is 4 ohms.

The amplifier features several controls to fine-tune sound:

Input sensitivity (Input Sens.): Adjusts the output level of your audio source to match the amplifier inputs (200mV – 4V).Filter mode (Filter Mode): For each pair of channels (CH. 1&2, CH. 3&4, CH. 5&6), you can select Off (filter disabled), HP (high-pass filter), or LP (low-pass filter).Filter frequency (Filter Freq. (Hz)): Sets the cutoff frequency of the active filter from 50 Hz to 500 Hz, with a 12 dB per octave slope.Remote level control (Remote Level Control): A connection is available for an optional remote level controller (HD-RLC or MHD-RLC) that functions as an attenuator.

Yes, the amplifier has an LED status indicator that signals various operating and protection conditions:

Green: Normal operation.Red: Safe mode, overheating condition, audio output is reduced. The amplifier will return to normal operation once the temperature drops.Amber (yellow): Safe mode, overcurrent condition, audio output is cut off. This may indicate a speaker/cable short circuit or low impedance.Off (unexpected): Low-voltage condition.

This amplifier is designed exclusively for use with 24-volt negative-ground electrical systems. It is not certified or approved for use in aircraft.

Yes, you can use speakers with different impedances, provided the minimum impedance is not below 2 ohms per channel in stereo mode or 4 ohms in bridged mode. Verify the impedance of your speakers before connecting them.

No, this amplifier is specifically designed for 24-volt electrical systems. It must not be used with a 12-volt system.

Yes, the amplifier has a dedicated connection for an optional remote level controller, such as the HD-RLC or MHD-RLC from JL Audio. This controller will act as a level attenuator.

You can connect any audio source with low-level RCA outputs, such as a marine car radio, a media player, or an audio signal processor, provided the source output voltage is between 200 mV and 4 V.

Installation requires appropriate tools and safety equipment. Professional installation is recommended. Before any installation, the audio system must be powered off and the battery system disconnected from the audio system. The amplifier must be securely mounted in a dry, well-ventilated location, without interfering with factory-installed systems.

For positive power connections (+24V) and ground (GND), a cable with a gauge of 8 AWG is required. For the remote activation connection, a cable with a gauge of 18 to 12 AWG is sufficient.

A suitable 30A fuse (or circuit breaker) must be installed on the main positive power feed (+24V). For vehicle/vessel safety, this fuse must be located within 45 cm (18 inches) of the battery’s positive terminal. 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.

It is important not to install the amplifier in the engine compartment, nor in areas of extreme heat, nor where it would be directly exposed to the elements (water, direct sunlight). It must be installed in a dry, well-ventilated location.

The amplifier allows bridging channels in pairs (CH. 1&2, CH. 3&4, CH. 5&6) to deliver more power to a single speaker, such as a subwoofer. To bridge a pair of channels, connect the speaker's positive wire to the (+) terminal of the first channel in the pair (e.g., CH. 1 (+)) and the speaker's negative wire to the (–) terminal of the second channel in the pair (e.g., CH. 2 (–)). It is critical to maintain a minimum impedance of 4 ohms for the speaker in bridged mode.