Radial Engineering

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Looking for world-class DI performance? This used Radial Engineering JDI Duplex MK4 Direct Box is in great condition and ready for the stage or studio. Designed with a fully passive, transformer-isolated signal path, it delivers ultra-clear, natural-sounding audio with exceptional headroom and virtually no distortion. The JDI Duplex features dual channels, each with XLR and 1/4" input/output connections, making it perfect for stereo instruments, keyboards, or laptops. Equipped with premium Jensen transformers, it ensures pristine signal integrity and effective noise rejection, even over long cable runs. Additional features include ground lift switches, 15dB input pads, and polarity reverse to handle any live or recording situation with ease. Housed in a rugged steel chassis, this DI box is built to last and ideal for both touring professionals and demanding studio work. Get pristine signal transfer and professional-quality audio with this reliable direct box at a great value.

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