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Harness the power of our revolutionary NexD™ High-Speed Switching Technology with the RD400/4 amplifier, delivering 100W x 4 at 2Ω and 75W x 4 at 4Ω with incredible efficiency, ultra-low distortion, and crystal-clear audio, all packed into a sleek, compact design that redefines performance.
Transform your audio setup with the RD400/4’s versatile bridgeable channels, allowing you to configure it as a powerful 3-channel or 2-channel amplifier (200W x 2 @ 4Ω). Enjoy easy access to top-mounted controls under a protective cover, streamlined connections all on one side, and studio-grade signal processing with high/low-pass filters and adjustable frequency selection for precise, professional-grade sound customization.
Enjoy unparalleled versatility with the RD400/4 amplifier's dual-range differential-balanced inputs, which accommodate a wide range of input voltage levels, along with automatic turn-on capability for seamless signal or DC-offset sensing. Plus, with innovative input type switches, you can easily bridge stereo outputs without the need for cumbersome Y-adaptors, simplifying your setup and enhancing your audio experience.
Experience effortless audio management with the RD400/4 amplifier’s onboard LED-clipping indicators, allowing for easy and precise input sensitivity adjustments. With preamp outputs for seamless signal pass-through to additional amplifiers, a durable black powder-coated finish for lasting performance, and a stylish dual-color LED light strip that clearly indicates amplifier status, this amplifier is designed to elevate your audio setup to new heights.
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Excellent product, as all JL Audio equipment is. Powering a set of Wet Sounds 8” Wakeboard tower speakers and performance is great, and to JL standards. I recommend this Product. NOTE: I will be buying a set of JL Wakeboard Tower Speakers in the near future.
I was in the process of doing an update on my car audio system. I started with the sub amp and thought I needed this amp here to match. This thing powers my Infinity Kappas just right! Nice and crisp, no distortion. Highly impressed compared to my old JX400/1 amp. Highly recommend this amp.
JL Audio sound is top-notch, no doubt. Swapped out my old JL amp for this one. Paired it up with my 2-way Kickers, and they're sounding awesome. Crystal clear and powerful. Thinking I might go for JL speakers soon too.
Nice looking amp. Sound is crystal clear and powerful. Its size is not that small but still easy to install. Controls are handy, and it makes easy to tune to get the best out of the amp and the speakers.
Excellent well balanced, great priced amp. Very happy with purchase.