JL Audio MHD Series 600W 4-Channel Full-Range Amplifier - Model MHD600/4

MHD Series 600w 4 Channel Full-Range Amplifier - MHD600/4

150 W x 4 @ 1.5-4

ULTRACOMPACT AND ULTRAPOWERFUL

Combining our Single Cycle Control and R.I.P.S. power supply technologies, MHD amplifiers deliver world-class, full-range fidelity and high-power output from an incredibly small package.

Features

• High-fidelity Class-D design delivers superb sonics


• Intelligently optimized for all the power - all the time


• Full suite of studio-grade signal processing on board


• Unique design adjusts operation to avoid thermal events


• Exceeds international standards for salt fog and UV exposure


• 3-Year Warranty

Single Cycle Control

Ground breaking technology applies output correction more than 400,000 times per second to deliver exceptional audio quality with reduced current draw and heat.

R.I.P.S. Technology

Regulated, Intelligent Power Supply is a tightly controlled design that maintains full power output from 1.5 to 4 ohms per channel and at any supply voltage from 11 to 14.5 volts.

Studio-Grade Signal Processing

Selectable 12 dB/octave (Butterworth) or steep 24 dB/octave (Linkwitz-Riley) filters with calibrated potentiometer to best integrate with subwoofers and component systems.

Differential-Balanced Inputs

A versatile design accepts speaker level signals without a line-output converter; it also delivers outstanding noise rejection while preventing alternator whine and other noises.

Advanced Rollback Protection

Innovative circuit design ensures that the amplifier will never shut down as a result of thermal overload and keeps the music playing, even under the most demanding conditions.

Built for the Elements

An all-aluminum, powder-coated housing with marine-grade hardware inhibits corrosion, and a watertight security cover protects all controls from the harshest of seasons.

Powerfully Neat

All MHD models share the same compact dimensions, making them far easier to place.

Realsink Chassis

The heat sink design requires no fans and permits stacking without losing cooling ability.

Designed To Fit

Removable power and speaker plugs aid installations in tight spaces.

In The Box

• MHD amplifier


• Power input plug


• Speaker connection plug(s)


• Four mounting feet


• 2.5 mm Allen wrench


• 4 mm Allen wrench


• Four machine screws


• JL Audio badge

Specifications

• Channels: 4


• Physical Dimensions (Height): 1.93


• Physical Dimensions (Width): 10.74


• Physical Dimensions (Depth): 7.85


• Weight: 6.6 lbs


• Warranty: 3-Year


• Operating Voltage: 11-14.5 VDC

Audio

• Amplifier Class: Class D


• Rated Continuous (RMS) Power: 150 W x 4/300 W x 2 (Bridged)


• Fuse Rating: 50 A


• Recommended Fuse Types: AFS, AGU or MaxiFuse


• Min. Copper Power/Ground Wire Gauge: 4 AWG wire

The JL Audio MHD Series 600W 4-Channel Full-Range Amplifier (Model MHD600/4) offers an exceptional combination of power, compactness, and durability, making it ideal for high-performance audio systems. Delivering 150 watts per channel at 1.5 to 4 ohms, this amplifier is engineered to provide clear, powerful sound across a broad range of applications. Its ultracompact design is perfect for installations where space is limited without compromising on audio quality or power output. The robust aluminum housing with marine-grade hardware ensures resilience against harsh environmental conditions, making it suitable for both vehicle and marine environments. The watertight security cover protects all controls from dust, moisture, and seasonal elements, ensuring long-term dependable performance.

Advanced technologies such as Single Cycle Control and R.I.P.S. (Regulated, Intelligent Power Supply) are integrated into the MHD600/4 to optimize efficiency and sound fidelity. Single Cycle Control applies output correction more than 400,000 times per second, reducing heat generation and current draw while maintaining audio clarity. R.I.P.S. technology maintains consistent power delivery regardless of supply voltage or load impedance, ensuring stable operation even under demanding conditions. The amplifier includes a comprehensive suite of studio-grade signal processing features, such as selectable 12 dB/octave Butterworth or 24 dB/octave Linkwitz-Riley filters, allowing users to fine-tune their system for optimal integration with subwoofers and other components. Differential-balanced inputs enable noise rejection and compatibility with speaker-level signals, simplifying installation in various setups.

Designed for durability and ease of installation, the MHD600/4 features removable power and speaker connection plugs, facilitating tight-space setups. The heat sink design, known as Realsink, requires no fans, allowing stacking and efficient heat dissipation without additional noise. Its lightweight design—just over 6.5 pounds—and compact dimensions make it versatile and unobtrusive. The amplifier's circuitry includes advanced rollback protection, preventing shutdowns due to thermal overloads, ensuring continuous operation during extended use. With a 3-year warranty, the JL Audio MHD600/4 amplifier is built for demanding environments, supported by a comprehensive set of mounting hardware and accessories included in the package. Whether for marine, automotive, or high-fidelity audio applications, this amplifier provides reliable, high-quality output with cutting-edge technology and rugged construction.

Features:

• High-fidelity Class-D design delivers superb sonics

• Intelligently optimized for all the power - all the time

• Full suite of studio-grade signal processing on board

• Unique design adjusts operation to avoid thermal events

• Exceeds international standards for salt fog and UV exposure

• 3-Year warranty

• Single Cycle Control applies output correction more than 400,000 times per second

• R.I.P.S. technology maintains full power output from 1.5 to 4 ohms and 11-14.5 volts

• Selectable 12 dB/octave or 24 dB/octave filters with calibrated potentiometer

• Differential-balanced inputs for noise rejection and speaker-level compatibility

• Advanced rollback protection prevents shutdowns due to thermal overload

• All-aluminum, powder-coated housing with marine-grade hardware for corrosion resistance

• Watertight security cover for protection against elements

• Realsink heat sink design requiring no fans for efficient cooling

• Removable power and speaker plugs for easy installation in tight spaces