Radial Pro DI pioneer the Radial J+4 is built

the Radial J+4 is built tough to handle the extreme rigors of professional touring

optimal for "jazz" style playing and some drop tunings

A beefier core boosts your playing inspiration by allowing greater sustain

and can be fitted in the soft case for transport

we do it right

Radial Pro DI pioneer the Radial J+4 is builtThe Radial ProDI is a passive direct box that combines exceptional audio performance with solid dependable construction, making it the ideal general duty direct box for stage and studio. Compact passive direct box for stage and studio Able to handle huge transients without distortion Transformer isolation eliminates noisy ground loops Plug and play easy to use feature set on stage or in the studio The heart of the ProDI is a custom wound Radial