Installation

Disconnect the ground at the vehicle battery before proceeding.

1. Connect the ampliﬁer to the battery

For maximum ampliﬁer performance, we suggest 4 gauge wire and a 1 Farad stiffening capacitor. A fuse or circuit breaker is required at maximum distance of 18” from the battery to protect the battery, the vehicle, and more importantly you. (see attached chart for proper fuse ratings) It is highly recommended that installation be carried out by an authorized MTX dealer or Circuit City.

2. Connect the ampliﬁer remote turn-on

Connect the remote input terminal of the ampliﬁer to the remote output terminal of the source unit (only if using RCA inputs) to establish ampliﬁer remote on/off through the power on/off of the source unit. If the source unit does not provide a remote output, connect to a switched 12-volt source, e.g. ignition switch.

3. Connect the ampliﬁer ground to the vehicle chassis

For maximum ampliﬁer performance we suggest 4 gauge wire. Find a solid piece of metal and scrape the paint away where the ground will be attache (NO FACTORY BOLTS). Connect the ground cable to the ampliﬁer at this point.

- NOTE -

For optimum performance and sound reproduction, prepare and secure the ground properly. Remove any surface material before securing to your chassis, ensuring a metal-to-metal ground point.

MXA4002 specifications

The MTX Audio MXA4002 is a powerful dual-channel amplifier designed specifically for marine and powersports environments. It combines robust performance with durability, making it an essential component for audiophiles who seek high-fidelity sound in challenging conditions.

One of the standout features of the MXA4002 is its waterproof design. The amplifier is built to withstand the rigors of marine and outdoor environments, making it resistant to moisture, salt, and debris. This feature not only enhances longevity, but it also ensures consistent performance regardless of the elements.

With a power output of 400 watts, the MXA4002 delivers substantial power to drive speakers and subwoofers effectively. It operates at a stable 2-ohm impedance, allowing it to produce exceptional sound quality even under heavy loads. This power output translates into clear, dynamic sound across various types of music, from booming bass notes to crisp highs.

The MXA4002 incorporates advanced Class D technology, which offers efficient performance while generating minimal heat. Class D amplifiers are known for their compact size and lightweight design while maintaining high output levels, making the MXA4002 a practical choice for installations where space is limited.

Moreover, this amplifier features variable crossover settings, allowing users to fine-tune the frequency output to match their specific speaker configurations. Whether using it with full-range speakers or subwoofers, the MXA4002 can be adjusted to ensure optimal sound tailored to individual preferences.

Another significant characteristic is its built-in thermal and overload protection. This safeguard prevents the amplifier from overheating or drawing too much current, ensuring it operates safely and efficiently even in demanding situations.

The sleek and rugged design of the MXA4002 also includes a corrosion-resistant finish, which complements its marine application. Its compact dimensions allow for flexible installation options, making it suitable for boats, ATVs, or any powersport vehicle.

In summary, the MTX Audio MXA4002 is an exceptional marine amplifier that combines robust power, advanced technology, and reliable durability. With features like waterproof construction, Class D efficiency, and customizable sound options, it stands out as an ideal choice for those looking to enhance their audio experience in outdoor and challenging conditions.