JL Audio MX Marine and Powersports Amplifiers, Class D, 12V, IPX7

Overview

The JL Audio MX is a range of Class D marine and powersports amplifiers for 12 volt, negative-ground audio systems. Across the line you can choose 1-, 3-, or 4-channel layouts with total power ratings from 280 W to 600 W, and water-resistance ratings of IPX6 or IPX7 depending on the model.

They accept RCA inputs and can also be fed from speaker-level outputs using an adaptor, with an input-voltage switch to match the signal (low range 250 mV to 4 V; high range up to 14 V or 15 V, depending on model). Controls sit under a gasketed cover so you can set gain and filter settings and then close it back up for use on board.

Key features

• Built for 12 volt, negative-ground electrical systems
• Channel options include monoblock subwoofer amps (1 channel), a system amp (3 channels), and full-range amps (4 channels)
• Water-resistance varies by model: IPX7 on the monoblock and 3-channel units, IPX6 on the 4-channel units
• Selectable input-voltage ranges to suit preamp outputs or speaker-level feeds (adaptor required for speaker-level)
• Covered adjustment area with a gasketed panel that gets reinstalled after setup
• 4-channel models support 2CH, 3CH, and 4CH input modes plus bridged output options for flexible speaker wiring
• Electrical requirements scale with output: fuse ratings from 30 A to 60 A and minimum power and ground wire from 8 AWG to 4 AWG

Variants

This amplifier range is offered in several configurations. The channel count and total power are the main differences, and the installation requirements such as wire size, fuse rating, and water-resistance rating follow the specific model.

All versions are intended for 12 volt, negative-ground systems and use a covered control panel for gain and filter settings.

• 010-03324-00: 1 channel, 300 W total power. A monoblock subwoofer amplifier that can be used alone or as a matched stereo pair.
• 010-03325-00: 1 channel, 500 W total power. A monoblock subwoofer amplifier with more output for a single subwoofer channel.
• 010-03326-00: 3 channels, 600 W total power. Runs a pair of main speakers plus a dedicated subwoofer channel from one chassis.
• 010-03105-00: 4 channels, 280 W total power. A full-range amp for four speakers, with the option to bridge channels when the speaker layout calls for it.
• 010-03106-00: 4 channels, 500 W total power. A higher-power full-range option for four speakers, with bridged outputs available for different wiring plans.

Installation and setup

Plan a mounting spot that stays dry and has air around it, such as inside the console, behind a helm panel, or in a cabin locker. Even the water-resistant models should not be installed where they will be directly exposed to the elements, submerged, or hit with high-pressure spray, and they should not be mounted in an engine compartment or other high-heat spaces.

Run power and ground to the battery or a properly sized distribution point, and protect the positive lead with an appropriate fuse mounted within 18 in (45 cm) of the battery connection. Use the minimum wire size specified for the model (8 AWG or 4 AWG) and secure all wiring so it cannot chafe on fiberglass edges or work loose from vibration.

After the wiring is complete, set input sensitivity and the filter options for your speakers and subwoofer, then reinstall the gasketed cover over the controls before putting the boat back into service. On IPX7 versions, the rating is based on immersion up to 1 meter (3.28 ft) for up to 30 minutes with the control cover properly installed.

Compatibility and system planning

These amplifiers pair well with marine source units that provide RCA pre-outs. When the source only has speaker outputs, a speaker-wire-to-RCA adaptor can be used and the input-voltage switch can be set to match the higher signal level.

This range fits setups where you are adding cockpit and cabin speakers, building a simple system with a dedicated subwoofer channel, or moving speaker power off the head unit so the system stays clean at cruising volume. Match the channel count and total power to your speaker layout and to whether the subwoofer is being powered from a monoblock or from a dedicated sub channel on a system amplifier.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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