2-3 Weeks. 45 Day Lowest Price - 100% Satisfaction Guarantee. The Radial JDV Mk3 is the most advanced and sonically superior direct box made today. With a 30-Volt internal rail voltage, the JDV combines exceptional sonic quality and unmatched dynamic handling for the most natural and uncolored sound possible. Its two inputs, four instrument amplifier outputs, and a unity-gain transformerless output. Features include Drag control for precise pickup load correction, 3.9 meg-ohm input impedance for piezo pickups, hi-pass and lo-pass filters, full LED status indicators, polarity reverse and all of the other features one would expect from a Radial DI.