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Home/Equipment/Amplifiers/JL Audio/RD400/4 4-Channel Class D Full-Range Amplifier
JL Audio RD400/4 Amplifier - 4-Channel Class D, bridgeable, RMS wattage per channel unknown, total RMS unknown, impedance stability unknown - Black, smooth aluminum chassis
JL Audio/Amplifier

RD400/4 4-Channel Class D Full-Range Amplifier

JL Audio RD Series Class D full-range amplifier delivering high efficiency and clean power. NexD switching technology with differential-balanced inputs for noise-free signal path. Variable crossover filters with selectable slopes. Compact design with robust thermal management. Built in Miramar, Florida.
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Woofers EtcBest Price
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$399.99
$940.00Save 57%
Updated 3/21/2026
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Frequently Asked Questions

What is the JL Audio RD400/4 4-Channel Class D Full-Range Amplifier?

The JL Audio RD400/4 4-Channel Class D Full-Range Amplifier is a car audio equipment made by JL Audio. View full specifications and where to buy on this page.

How much does the JL Audio RD400/4 4-Channel Class D Full-Range Amplifier cost?

The JL Audio RD400/4 4-Channel Class D Full-Range Amplifier typically sells for around $400 depending on the retailer and variant. Check the "Where to Buy" section for current pricing from authorized dealers.

Where can I buy the JL Audio RD400/4 4-Channel Class D Full-Range Amplifier?

You can purchase the JL Audio RD400/4 4-Channel Class D Full-Range Amplifier from authorized dealers listed in the "Where to Buy" section on this page. We recommend buying from authorized retailers to ensure warranty coverage and genuine products.

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