JL Audio MHX300/1 Full-range mono marine amplifier Power Amplifier

Big sound from an efficient package

JL Audio's MHX300/1 amplifier is proof that a small amp can pack a serious punch — up to 300 watts. Designed specifically for marine and powersports applications, this compact amp gives you big sound without stressing your charging system.

Compact Class D design

The amp's Class D NexD™ ultra-high-speed switching design eliminates the traditional drawbacks of a Class-D design to deliver full-bandwidth performance, excellent efficiency, and very low distortion levels. And, unlike many compact amps, the MHX300/1 offers a full set of audio controls to adjust your bass, including a low-pass filter, bass boost, and subsonic filter. You'll get remarkable sound quality from an amp that fits into tight spots.

Tough and versatile

JL Audio designed the MHX300/1 with marine use in mind, so it's not just powerful; it's also tough enough for life on the water. Powder-coat finishes, a gasketed control cover, and rugged stainless-steel hardware combine to protect this amp against the moisture, extreme temperatures, and corrosive salt.

The compact design gives you plenty of configuration options when you're building your system. You can use one MHX300/1 to drive a sub, or get a pair for full-range satellite speakers or a larger sub system. With dual-range inputs, this amp can accept a wide range of input voltage levels, from line-level all the way to higher-power speaker-level signals. And the optional wired remote lets you adjust the amp's level from the helm.