



JL Audio JD400/4
JD Series 400W 4-Channel Car Amplifier
Upgrade Your Car Audio with JL Audio JD400/4 – Premium 4-Channel Amplifier
Introduction
Enhance your car audio system with the JL Audio JD400/4 4-Channel Amplifier. Engineered to deliver exceptional power and pristine sound quality, this high-performance amplifier brings your favorite music to life. Whether you're a daily commuter or an audiophile on a road trip, the JL Audio JD400/4 ensures you enjoy every moment with immersive audio.
Unmatched Sound Quality
Experience outstanding sound quality with the JL Audio JD400/4 4-Channel Amplifier. This amplifier delivers clear, powerful sound that enhances every note and beat of your music.
Key Features:
- High-Performance 4-Channel Amplifier: Designed to provide deep, accurate sound with minimal distortion.
- Advanced Multi-Channel Amplifier: Offers superior sound quality and performance.
- NexD™ Switching Technology: Ensures high efficiency and low distortion.
- High-Quality Construction: Built to last with durable materials.
- Regulated, Intelligent Power Supply: Provides consistent power output for optimal performance.
Advanced Design and Materials
The JL Audio JD400/4 is designed with advanced materials and engineering to provide superior sound quality and durability. The combination of high-quality components ensures a rich and immersive audio experience.
Design Features:
- NexD™ Switching Technology: Maintains high efficiency and reduces distortion.
- Regulated Power Supply: Ensures consistent performance even under heavy loads.
- Cast Alloy Heat Sink: Efficiently dissipates heat for reliable operation.
- Differential-Balanced Inputs: Minimizes noise for cleaner sound.
Seamless Integration with Existing Systems
The JL Audio JD400/4 4-Channel Amplifier is designed for seamless integration with your existing car audio system, ensuring a smooth and efficient upgrade. Enjoy enhanced audio performance without the hassle of complicated installations.
Integration Features:
- Universal Compatibility: Compatible with most car audio systems.
- Easy Installation: Simple connection with included wiring options for a hassle-free upgrade.
- Improved Audio Performance: Boosts overall sound quality and volume for a more immersive experience.
Durability and Reliability
Built to withstand the rigors of daily use, the JL Audio JD400/4 features robust construction and advanced protection mechanisms to ensure reliable performance. Enjoy powerful sound without worrying about damage or wear.
Durability Features:
- Rugged Construction: Durable materials and design for long-lasting performance.
- High-Quality Components: Ensures reliable performance and longevity.
- Advanced Protection: Designed to resist environmental and mechanical stress.
Why Choose JL Audio JD400/4:
Invest in the JL Audio JD400/4 4-Channel Amplifier for a superior audio experience tailored for your vehicle. Known for its reliability and high performance, JL Audio delivers products that enhance your driving enjoyment.
Benefits of JL Audio JD400/4:
- Superior Sound Quality: Clear, powerful sound with minimal distortion.
- High-Quality Construction: Built to withstand the rigors of daily use.
- Universal Compatibility: Works perfectly with most car audio systems.
- Durable and Reliable: Built to provide long-lasting performance.
Specifications:
- Amplifier Type: 4-Channel
- Power Output: 75W RMS x 4 @ 4 ohms, 100W RMS x 4 @ 2 ohms, 200W RMS x 2 @ 4 ohms (bridged)
- Frequency Response: 20Hz-20kHz
- Signal-to-Noise Ratio: >95 dB
- THD+N: <1%
- Dimensions: 8.66" x 7.09" x 2.09"
- Compatibility: Universal
What’s In the Box:
- JL Audio JD400/4 4-Channel Amplifier
- Wiring Harness
- Mounting Hardware
- User Manual
Conclusion
Upgrade your car audio system with the JL Audio JD400/4 4-Channel Amplifier and experience superior sound quality in a sleek design. Offering powerful performance, universal compatibility, and enhanced durability, this amplifier is the perfect addition to any vehicle. Enjoy crystal-clear audio on every drive with JL Audio.
Frequently Asked Questions
What makes the JL Audio JD400/4 4-Channel Amplifier stand out? The JL Audio JD400/4 features a 4-channel design with NexD™ switching technology to provide superior sound quality with clear, powerful sound and minimal distortion, making it ideal for enhancing your car audio system.
Is the JL Audio JD400/4 easy to install? Yes, the amplifier comes with a variety of wiring options and includes mounting hardware for easy setup and installation.
Can the JL Audio JD400/4 integrate with any car audio system? Yes, the JD400/4 is designed for universal compatibility and can be integrated with most car audio systems for improved audio performance.
Is the JL Audio JD400/4 durable? Yes, the amplifier is built with rugged construction and features high-quality components to ensure reliable performance and protect against damage.
What are the specifications of the JL Audio JD400/4 4-Channel Amplifier? The amplifier features a 4-channel design, a power output of 75W RMS x 4 @ 4 ohms, 100W RMS x 4 @ 2 ohms, 200W RMS x 2 @ 4 ohms (bridged), a frequency response of 20Hz-20kHz, a signal-to-noise ratio of >95 dB, a THD+N of <1%, and dimensions of 8.66" x 7.09" x 2.09".
Does the JL Audio JD400/4 4-Channel Amplifier come with a warranty? Yes, the JL Audio JD400/4 typically comes with a manufacturer’s warranty, providing peace of mind with your purchase.

FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.