JL Audio MVi Marine Amplifiers, Integrated DSP, Class D

Overview

The JL Audio MVi Marine Amplifier is a DSP-equipped marine audio amplifier family for 12 V, negative-ground boats (10 to 15 V DC operating range), with options from 1 to 8 channels and 400 W to 1000 W total power.

Setup is handled in software instead of on-board knobs. Configuration and tuning are done through the TüN application using a USB connection, and the system can be expanded with optional accessories for network control and wireless tuning.

Mount it vertically with the connections pointing downward to achieve an IPX2 water-resistance rating, and treat it like any other high-current audio component: protect it from direct weather, standing water, and high-pressure spray.

Key features

• DSP configuration and control through the TüN application via USB (no on-board tuning knobs)

• 12 V DC, negative-ground operation with a 10 to 15 V DC operating range

• Differential-balanced RCA inputs for noise rejection, with high input capability up to 8 or 16 VRMS depending on model

• Line-level RCA pre-outs (max 4 V RMS) for feeding additional amplifiers

• Class D topology with 2nd-generation NexD2 switching technology

• IPX2 water-resistance rating when mounted vertically with connections pointed downward

• Power and ground connections accept up to 4 AWG copper; fuse or ignition-protected breaker should be within 7 in (18 cm) of the battery connection

• JLid-COMM port for optional accessories such as an MVi-HUB network hub, digital remote controller, or Bluetooth communicator

Variants

This amplifier family is offered in multiple configurations that vary mainly by channel count (1, 2, 4, 5, 6, or 8 channels) and total power (400 W to 1000 W).

The range includes monoblock models intended for subwoofers, full-range multi-channel models for speaker zones around the boat, and 5-channel system amplifiers for mixed speaker and subwoofer setups from a single chassis.

Installation and setup

Mount the amplifier in a dry, well-ventilated location that does not interfere with existing systems. Secure it so it cannot move under vibration or impact, and keep enough open air around the chassis for heat to shed during long listening sessions.

For best moisture management, position it vertically with all connections pointing downward and route wiring so condensation drips away from the connectors. IPX2 water-resistance is achieved in that orientation, but it is still not a part to mount where it can be submerged or blasted during washdowns.

After wiring, connect with USB and use the TüN interface to set input routing, output levels, and presets. Final tuning is best done once the system is playing on the water, with the charging system at normal voltage.

Electrical and system integration

These amplifiers are intended for 12 V DC, negative-ground systems only. Run tinned copper power and ground, keep grounds consistent across the audio system, and protect the main feed with an appropriate fuse or ignition-protected breaker installed within 7 inches (18 cm) of the battery connection, sized for the amplifier and the cable run.

The power connector is sized for up to 4 AWG copper. A remote turn-on lead from the source unit is used to switch the amplifier on, and a switched 12 V source can be used when a dedicated remote output is not available.

Compatibility and signal routing

Signal connections are RCA, and the differential-balanced input stage helps keep alternator whine and other noise out of the system on longer cable runs. Depending on the model, the input section can accept up to 8 VRMS or 16 VRMS, which can simplify integration with higher-voltage source outputs.

Line-level pre-outs (max 4 V RMS) support system expansion without splitting source outputs at the helm, and the JLid-COMM port allows add-on control and multi-amplifier integration when you are building out a larger audio system.

Use cases on board

Use the monoblock versions when you want a dedicated subwoofer channel, or step up to multi-channel models when you are powering cockpit, cabin, tower, or transom speakers with DSP control. The 5-channel options cover a mixed system where you want speakers and a subwoofer handled in one amplifier.

This lineup fits boats where the audio system needs careful tuning to stay clean at speed, and where installers want a repeatable setup with saved presets for different listening conditions.

Maintenance and care

After a few trips, recheck mounting hardware and the power connector set screws, and inspect wiring for chafe where it passes through bulkheads or lockers. Keep ventilation paths clear and address any signs of moisture tracking toward connectors by improving cable routing and drip loops.

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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