Audio Concepts
JL AUDIO HD SERIES 4-CHANNEL 600W CLASS D AMPLIFIER
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If you're passionate about car audio and crave an exceptional listening experience on the road, the JL Audio HD600/4 4-Channel Power Amplifier is the key to unlocking the full potential of your sound system. This compact yet mighty amplifier is designed to deliver unparalleled audio quality, making every drive an auditory delight.
High-Performance in a Compact Package
The HD600/4 is proof that good things come in small packages. This Class D amplifier combines high performance with a space-saving design. It's more efficient, generates less heat, and requires less power compared to traditional amp designs. The result? You get big, powerful sound without sacrificing cabin space or taxing your vehicle's electrical system.
Advanced Technology for Audiophiles
JL Audio is renowned for its commitment to audio excellence, and the HD600/4 is no exception. It leverages cutting-edge technology to ensure your music is reproduced with exceptional accuracy, even under demanding conditions. Single Cycle Control™ technology eliminates signal distortion that has plagued Class D amplifiers in the past. This means you'll experience crystal-clear, studio-quality audio, just as the artist intended.
4 Channels of Reliable Power
The HD600/4 amplifier is a true workhorse, delivering 150 watts RMS per channel to your speakers or subs. What's impressive is that it accomplishes this from a chassis that's only 2 inches tall—roughly the size of a sheet of computer paper. The regulated power supply allows the amp to maintain its rated power across a wide range of impedances, ensuring consistent performance even when voltage levels drop during heavy use.
Fine-Tune Your Sound
This amplifier gives you control over your sound like never before. It features variable high- and low-pass filters with cutoff frequencies ranging from 50 to 500 Hz and selectable slopes of 12 or 24 dB/octave. Additionally, it offers a subsonic filter and output polarity control, allowing you to fine-tune your audio to perfection.
Convenient Extras
JL Audio understands that convenience matters. You have the option to add JL Audio's wired remote, which lets you control the amplifier's volume from the comfort of your front seat. If you're looking to maximize your power while minimizing space, the optional HD stacking kit allows you to mount one HD Series amp on top of another—a perfect solution for those who crave maximum power.
Built to Last
Durability is a top priority for JL Audio. The HD600/4 features a brushed aluminum finish that not only looks sleek but also dissipates heat effectively. Black powder-coated cast alloy heat sinks and a bottom panel ensure that the amplifier remains cool, even during extended use. To top it off, a black powder-coated, gasketed cover protects the controls from dust and damage.
Unleash the Power of Sound
The JL Audio HD600/4 4-Channel Power Amplifier is the audiophile's dream come true. With its compact design, advanced technology, and exceptional performance, it takes your car audio system to new heights. Elevate your driving experience with the power of pristine sound.
Shipping & Returns
Shipping & Returns
You can return a product for up to 30 days from the date you purchased it. Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt.
All clearance items are final sale and are non-refundable. Learn more




