Radial Engineering

Radial Engineering PRO DI Direct Box + XLR Cables Bundle

XLR

Complete passive DI and cable bundle from Radial Engineering for reliable, noise-free instrument-to-console connections.

$134.99*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

The Radial Engineering PRO DI Bundle pairs the company's well-known ProDI passive direct box with two 20-foot XLR cables, giving you the essentials for connecting an instrument or line-level source directly to a mixing console, audio interface, or snake. Because the ProDI is a passive design built around a custom transformer, it operates without phantom power or batteries, making it a set-and-forget solution on stage or in the studio. It handles the impedance conversion and signal balancing needed to send a clean, noise-free signal over long cable runs.

The inclusion of two XLR cables rounds out the bundle so you can get up and running without hunting for additional accessories. At 20 feet each, the cables suit most typical stage and studio distances. This bundle is well-suited for gigging musicians, houses of worship, and small studios that need a reliable DI path with minimal fuss.

Key Features

This bundle of 3 items includes the Radial Engineering ProDI and two 20-foot XLR Cables.

Radial Engineering ProDI: The 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.

Professional 20-foot XLR Cable: Professional balanced cable with nickel plated male XLR to female XLR connectors for durability. This microphone cable is flexible, durable, and perfect for every application.

Specifications

Direct Box Type
Passive
Brand
Radial Engineering
Model
PRO DI
Included Cables
Two 20-foot XLR cables
Bundle Contents
1x Radial ProDI, 2x XLR cables

Pros & Cons

👍 Pros

  • Passive design means no phantom power or batteries needed, ensuring simple and reliable operation.
  • Bundle provides both the DI box and cabling in one purchase, reducing the need to source components separately.
  • Radial Engineering is well-regarded for rugged build quality and consistent audio performance.
  • Two 20-foot XLR cables offer practical length for most live and studio setups.

👎 Cons

  • Passive DI boxes generally provide less signal boost than active alternatives, which may matter for very low-output sources.
  • Only two XLR cables are included, so more complex setups will require additional purchases.
  • The bundle does not include a 1/4-inch instrument cable for the input side.
  • No carrying case or pouch is mentioned for transport and protection.

Frequently Asked Questions

The bundle includes one Radial Engineering ProDI passive direct box and two 20-foot XLR cables.
No. The ProDI is a passive direct box, so it requires no external power source to operate.
The ProDI accepts standard 1/4-inch instrument signals from keyboards, acoustic guitars, bass guitars, and other line-level or instrument-level sources.
At 20 feet each, the cables cover most stage and studio routing needs, though very large venues may require longer runs.