Radial ProDI Passive Direct Box


RRP $239.00
SAVE $44.00
Usually available within 7 days

or 4 payments of $48.75 with Info

Radial ProDI is a passive direct box - the ideal general duty direct box for stage and studio.


The 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.

The ProDI is a passive direct box designed for use on stage or in home recording studios, with the ability to handle high output instruments without distortion, and a transformer-isolated output to eliminate noise from ground loops.

Following the footsteps of the Radial JDI, the ProDI is a high-quality ultra-compact passive direct box that has been specifically developed to allow regional sound companies and project studios to enjoy the quality of a Radial direct box at a more affordable price point. The ProDI features a custom-made transformer that is able to handle high levels without saturation.


World class DI

The heart of the ProDI is a custom wound Radial transformer. It features an exceptionally high 140kΩ input impedance to reduce loading while enabling the ProDI to handle extreme signal levels at all frequencies without distortion. This is further improved upon with an internal MuMETAL® shield to protect against electromagnetic fields that can cause unshielded transformers to distort.

This high-performance transformer has an exceptionally linear frequency response from 20Hz to 18kHz, making it ideal for electronic musical instruments and audio equipment. ProDI also features a -15dB PAD for high output sources and ground lift switch to troubleshoot noise from ground loops. The ProDI is a great choice for bass and acoustic guitar.

ProD2 stereo version is also available. The ProD2 is essentially two ProDI’s in one compact enclosure designed for stereo keyboards, DJ equipment and consumer hi-fi systems. The ProDI and ProD2 are housed in an extremely rugged two piece 14 gauge steel enclosure with a book-end-designed outer shell that prevents damage to the switches.


ProDI Features at a Glance:

• 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

• 1/4' Input instrument connection

• -15dB Pad reduces input sensitivity


Pro DI Applications:


ProDI with electric bass

The ProDI works great for high output devices like active bass guitars. It's able to handle the huge signal levels from active pickups without distortion and the transformer isolation prevents ground loop hum. The ProDI sends the pure sound of the bass to the PA and to the player's amp


ProDI with acoustic guitar

Acoustic guitars can sometimes have sharp sounding active preamps. The ProDI naturally smoothes out the transients for a warmer tone. And because the ProDI is able to handle loud signals from active pickups, it will not distort. This makes it a great direct box for acoustic guitars.


ProDI with a keyboard

Today's digital keyboards are not only very dynamic, they also have a tremendous range from low to high notes. The ProDI is able to withstand excessive signal levels at all frequencies without introducing distortion or phase shift, so all your patches sound great.


For more detailed product information please visit the manufacturer's website.



For full specifications, please visit the Radial website.


Model # RA-PRODI
Barcode # 0676101035847
Brand Radial Engineering

Three (3) years


Be The First To Review This Product!

Help other Musiclab users shop smarter by writing reviews for products you have purchased.

Write a product review