Memphis Audio MXA300.2 IP66 2-Channel Powersports Amplifier

The Memphis Audio MXA300.2 is a compact two-channel powersports amplifier designed to add dedicated power where space and weather exposure are practical concerns. It is suited for motorcycles, ATVs, UTVs, side-by-sides, and marine-oriented audio installations. Its IP66-rated construction helps support installations exposed to dust, water spray, and changing outdoor conditions.

In stereo operation, the MXA300.2 delivers 115 watts RMS per channel at 4 ohms or 150 watts RMS per channel at 2 ohms. This makes it a practical match for a pair of appropriately rated full-range speakers, pods, or component speakers. For a single-subwoofer setup, it can be bridged to provide 300 watts RMS at 4 ohms.

The amplifier uses full-range Class D operation to provide efficient amplification in a small chassis. Its frequency response is rated from 20Hz to 20kHz, allowing it to support either full-range speaker duty or a focused bass channel when configured accordingly. Distortion is rated at less than 1% at 4 ohms.

High-level and low-level inputs provide connection options for systems using either speaker-level outputs or RCA-style preamp outputs. A selectable crossover includes high-pass, low-pass, and full-range positions, with an adjustable frequency range from 50Hz to 200Hz. The adjustable level control helps match the amplifier to the source unit and connected speakers.

The MXA300.2 fits easily into a staged powersports audio upgrade, whether it is powering a first pair of speakers or serving as a compact bridged subwoofer amplifier. Sealed connectors, sealed tuning controls, and a conformal-coated board are intended for demanding installations. Its small footprint can help when mounting in a saddlebag, under a seat, or in a protected compartment.

Key Features

• Two-Channel Class D Design: Powers a stereo speaker pair or a bridged mono subwoofer setup.
• IP66 Water Resistance: Supports use in weather-exposed powersports and marine applications.
• 150W x 2 at 2 Ohms: Provides substantial stereo output for compatible speakers.
• 300W Bridged Output: Delivers mono power to one 4-ohm subwoofer load.
• High- And Low-Level Inputs: Connects to RCA-equipped or speaker-level audio sources.
• Adjustable Crossover: Select high-pass, low-pass, or full-range operation for the system.

Design & Installation

The MXA300.2 uses a sealed chassis, sealed connectors, sealed tuning controls, and a conformal-coated circuit board to support outdoor-oriented installations. Durable stainless-steel and aluminum hardware complement the compact enclosure. The amplifier measures 8.625 inches long, 3.25 inches wide, and 1.75 inches high.

Mount the amplifier in a location protected from direct water contact while allowing ventilation for heat dissipation. Use either the low-level RCA input or high-level input, then select full, high-pass, or low-pass crossover operation to suit the connected speakers or subwoofer. Verify speaker impedance before wiring, use a properly fused power connection near the battery, and connect both supplied power and ground wire pairs as directed.