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JL Audio JD400/4
The JL Audio JD400 is a high-performance car audio amplifier. This 4-channel amplifier. Built for reliable power delivery and superior sound quality.
Specifications
size
400
channels
4
voice coil
dual_4
Understand Class A, A/B, D, and more
Amplifier Classes ExplainedCompare Prices(2 retailers)
S
Sonic ElectronixBest Price
In Stock
$40.00
$299.99Save 87%
Updated 12/21/2025
S
Sonic ElectronixBest Price
In Stock
$40.00
$299.99Save 87%
Updated 12/21/2025
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Frequently Asked Questions
What is the JL Audio JL Audio JD400/4?
The JL Audio JL Audio JD400/4 is a car audio amplifier made by JL Audio. View full specifications and where to buy on this page.
How much does the JL Audio JL Audio JD400/4 cost?
The JL Audio JL Audio JD400/4 typically sells for around $40 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 JL Audio JD400/4?
You can purchase the JL Audio JL Audio JD400/4 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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