The Radial ProD2 is a high-quality, passive dual-mono direct box that's perfect for use with electric pianos, keyboards, and synthesizer racks. The ProD2's custom transformer helps to deliver the highest performance possible, virtually eliminating issues with noise. And, as with all Radial DI boxes, the ProD2 is incredibly reliable and easy to use just plug in your dual-mono instrument and instantly eliminate ground loops, while enjoying a rich, full sound.