Radial Pro48 1-Channel Active DI Box


94 out of 100. Incorporating 225+ ratings and reviews.

Street Price: 

Radial Pro48 Active DI Box
Radial Pro48 Active DI Box

The Pro48 is essentially a stripped-down, budget-friendly version of the J48, providing the same sound and build quality without the extra features.

It is also smaller and lighter, which can be handy, while still retaining Radial's brand of reliability.

Those who want a more affordable alternative to the J48 has been satisfied by the Pro48, and since it only costs around half, they were able to buy more units for other instruments - resulting in a more pronounced improvement in the overall sound of their band or venue.


  • Active DI Box Design
  • Phantom Powered
  • -15dB Pad
  • Input 1/4", Output XLR and 1/4" Thru
  • Weight: 1.55lbs


While many are quite happy with cheap DIs, those that decided to move up to Radial quality have nothing but good things to say about their decision. The general consensus is that they perceived a tremendous jump in quality compared to cheaper alternatives. And since it is versatile, it has provided musicians and churches with a reasonably affordable way of having all their instruments DI'ed before plugging straight into the PA.


While it is 50% cheaper than the J48, we all still want it to be cheaper. But there was not one complaint about its price among the reviews, which shows how justified the price is considering its quality. There were some who complained about minor build issues but most of the issues were easily fixed by simple actions like tightening screws.


If you are in the market looking for a versatile and high-quality active DI box to outfit multiple instruments and your budget is somewhat limited, then you might want to consider this one.

The Pro48 was on our recommended list until December 2018 when we undertook a major review of the category and found there were more highly rated options for us to recommend in our guide to The Best DI Boxes.