JL Audio HD600/4 – 4 Channel Class D Full-Range Car Amplifier, (600W)

JL Audio HD600/4 4-Channel Class D Amplifier,

This compact multi-channel powerhouse employs our Single-Cycle Control switching design and R.I.P.S. technology to deliver 150 W x 4 or 300 W x 2. Tight power supply regulation keeps distortion down and maximizes sound quality.

When using the HD750/1 or HD1200/1 to drive a subwoofer system, the HD600/4 is the ideal satellite amplifier, delivering huge dynamics with pristine resolution. From a pure sound quality perspective, we invite you to compare the real-world, in-car performance of this amplifier to any other amplifier on the market, of any type, at any price.

It can also be deployed on its own as a very capable 3-channel system amplifier with 150 W x 2 to the satellites and 300 W x 1 to a subwoofer system.

This amplifier features a brushed aluminum finish with black powder-coated cast alloy heat sinks and bottom panel. A black powder-coated, gasketed cover is also provided to protect the controls.

Compact, Powerful, Efficient

Combining groundbreaking JL Audio Single Cycle Control™ switching along with Regulated, Intelligent Power Supply (R.I.P.S.™) technologies, these HD monoblock amplifiers deliver world-class, full-range fidelity and ultrapowerful output from a surprisingly small package.

Big Power, Small Size

Small size, minimal heat and lots of power — Class-D amplifier design with innovative JL Audio switching technology applies output correction more than 400,000 times per second to deliver exceptional audio quality with reduced current draw and heat.

Max Power at Any Voltage Or Impedance

In both the 750- and 1200-watt HD monoblock versions, our tightly controlled Regulated, Intelligent Power Supply design maintains full power output from any impedance between 1.5 and 4 ohms per channel and at any supply voltage from 11 to 14.5 volts.

Studio-Grade Signal Processing

Selectable 12-decibel/octave (Butterworth) or steep 24-decibel/octave (Linkwitz-Riley) filters with calibrated potentiometer make it easy to extract optimum performance from your subwoofer.

Advanced Rollback Protection

A proprietary protection circuit monitors the amplifier’s thermal condition, rolling back peak output power until the amplifier cools down to a safe operating temperature.

Flexible Mounting Options

For single or multiple amplifier installations, standard mounting screws with corner caps and lateral mounting feet are provided. An optional stacking kit is also available for mounting one amplifier atop another.

Specifications

Rated Continuous (RMS) Power @ 14.4 V

• @ 4 Ω 150 W RMS x 4
• @ 3 Ω 150 W RMS x 4
• @ 2 Ω 150 W RMS x 4
• @ 1.5 Ω 150 W RMS x 4
• Bridged @ 8 Ω 300 W RMS x 2
• Bridged @ 4 Ω 300 W RMS x 2

Rated Continuous (RMS) Power @ 12.5 V

• @ 4 Ω 150 W RMS x 4
• @ 3 Ω 150 W RMS x 4
• @ 2 Ω 150 W RMS x 4
• @ 1.5 Ω 150 W RMS x 4
• Bridged @ 8 Ω 300 W RMS x 2
• Bridged @ 4 Ω 300 W RMS x 2

General Specifications

• Frequency Response 6 Hz – 30 kHz (+0, -1dB)
• S/N Ratio, referred to highest rated power >110 dB (A-weighted, 20 Hz – 20 kHz noise bandwidth)
• S/N Ratio, referred to 1 W>88.2 dB (A-weighted, 20 Hz – 20 kHz noise bandwidth)
• Damping Factor @ 4 Ω>300 / 50 Hz
• Damping Factor @ 2 Ω >150 / 50 Hz
• THD+N @ Rated Power <0.03% @ 4 Ω per Ch.
• Input Voltage Range @ RCA Inputs Switchable from 200 mV – 2 V RMS to 800 mV – 8 V RMS
• Min.Copper Power / Ground Wire Gauge 4 AWG wire
• Fuse Rating 50 A (AFS, AGU or MaxiFuse™)

Signal Processing

• Filter Mode(s) Low-Pass or High-Pass
• Filter Slope(s)12/24 dB/octave
• Filter Frequency Range 50 Hz – 500 Hz
• Detented, Calibrated Filter Freq. Potentiometers
• Filter Defeat Function
• Remote Level Control Optional (HD-RLC)
• Remote Level Modes 2 or All Channels
• Channel Input Mode Switch (2/4 ch.)
• Pass-Through Preamp Output Buffered
• Source Channel Selection for PreOuts

In The Box

• HD 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