JL Audio MHX280/4

Engineered specifically for limited-space marine applications, the 4-channel MHX280/4 amplifier employs JL Audio's high-speed NexD™ switching design to deliver lots of clean power, while being kind to small charging systems. Its ultra-compact, cast aluminum chassis is highly resistant to corrosion, with an IPX6 water-resistance rating, making it ideal for applications where moisture would prohibit use of a conventional 12V amplifier.

Delivering a solid 50W x 4 into 4 ohms (14.4V, 1% THD), the MHX280/4 is fully bridgeable, so it can be used as a 3-channel amplifier, or as a 2-channel amplifier producing a potent 140W x 2 into 4 ohms. Other features include independent front and rear crossovers with selectable full-range, high-pass or low-pass filter controls and a dual-range input section that accepts a wide range of input voltage levels, from line-level all the way to high-power speaker level signals.

Key Features:

Small Footprint, Big Kick

The JL Audio HXM280/4 is clearly designed to be as small as possible without sacrificing the quality and performance we all expect from a JL Audio product. At 1.77" x 3.09" x 8.66" the JL Audio HXM280/4 is one of the smallest amplifiers on the market. When compared to its small footprint, the engineering is extraordinary considering the amp is equipped with a proper bank of settings - including a 12 dB per octave filter slope - and true full range frequency response (20 Hz - 20,000 Hz) . Putting the 'nerdy' figures aside, and you still have an amplifier that put outs solid modest power for any sized setup - 50W x 4 @ 4Ω , 70W x 4 @ 2Ω , & 140W x 2 @ @ 4Ω (Bridged)

NexD Switching Technology

JL Audio have taken the simple fixed PWM approach - found in almost all common amplifiers - and enhanced it with a very high switching frequency: 400 kHz, which is exponentially higher than most Class D Full-range amplifiers. This pushes the amplifier's bandwidth to a much higher frequency than seen before, and still provide minimal distortion and improved efficiency, while keeping typically bulky circuity more compact. Your speakers will reward you with crisp, clear performance. The bottom line is simply great audio: clean, powerful and reliable.

Sonic Electronix Power Certified Amplifier