---
product_id: 315932057
title: "Pro DI Passive Direct Box"
brand: "radial"
price: "$482.51"
currency: USD
in_stock: true
reviews_count: 5
category: "Radial"
url: https://www.desertcart.ec/products/315932057-pro-di-passive-direct-box
store_origin: EC
region: Ecuador
---

# High-impedance to balanced signal No power needed Rugged I-beam steel housing Pro DI Passive Direct Box

**Brand:** radial
**Price:** $482.51
**Availability:** ✅ In Stock

## Summary

> 🎤 Elevate your sound with pro-grade clarity and bulletproof reliability!

## Quick Answers

- **What is this?** Pro DI Passive Direct Box by radial
- **How much does it cost?** $482.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/315932057-pro-di-passive-direct-box)

## Best For

- radial enthusiasts

## Why This Product

- Trusted radial brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built Like a Tank:** I-beam steel construction and protective bookend design ensure rock-solid durability for the road or studio.
- • **Hum-Free Performance:** Ground lift and -15 dB PAD switches eliminate noise and handle strong signals effortlessly.
- • **Plug & Play Versatility:** 6.35mm input with thru output and XLR balanced output for seamless integration with any pro audio setup.
- • **Zero Power, Zero Hassle:** Passive design means no batteries or phantom power required—always ready when you are.
- • **Crystal-Clear Signal Transformation:** Custom high-quality transformer preserves every nuance of your instrument’s tone with pristine clarity.

## Overview

The Radial Pro DI Passive Direct Box is a rugged, passive DI solution designed for professional musicians and audio engineers. It converts high-impedance, unbalanced instrument signals into low-impedance, balanced microphone signals without requiring power. Featuring a custom transformer for clear, linear sound, a robust I-beam steel housing for durability, and essential controls like ground lift and PAD switches, it ensures interference-free, high-fidelity audio transmission on stage or in the studio.

## Description

Radial Pro-DI Passive DI Box Passive DI box for stage and studio. No power requirement, works without battery or phantom power. Converts high-impedance, unbalanced signals into low-impedance, balanced microphone signals. High-quality custom transformer for clear and linear sound. -15 dB PAD switch for lowering strong input signals. Ground lift switch to avoid hum loops. 6.35mm jack input for instruments such as guitar, bass, keyboard or drum machines. Thru socket for parallel connection to an amplifier. XLR output with balanced, low-impedance microphone signal. Robust steel housing in I-beam design for maximum durability. Jacks and switches protected by bookend design. Non-slip foam underlay for a secure stand on any surface. Double board technology with bolted steel standoffs. The passive DI box all-rounder. The Radial ProDI is a professional passive DI box specially designed to reliably and losslessly transform instrument signals into a balanced microphone signal. It impresses with its easy handling, robust construction and an exceptionally clear sound. Compact solution for clear signals. The Radial ProDI serves as an interface between instrument and mixing console and converts high-impedance, unbalanced signals into low-impedance, balanced microphone signals. This transformation enables interference-free transmission over long cable routes, a key advantage for live setups and recording applications. Thanks to its high-quality, specially designed impedance matching transformer, dynamics and details of the original signal are fully preserved. Robust technology for demanding applications. The ProDI scores with an ultra-stable steel housing in the "I-beam" design, which protects the interior from mechanical stress and thus increases the service life.

Review: Used for worship team at church. The best sound ever at a reasonable price.
Review: Conosco la qualità Radial perché ho altri loro prodotti ma fino a poco tempo fa non avevo bisogno di una DI e soprattutto con 2 output. Ne ho provata una di altra marca, economica, ma l'ho dovuta restituire subito.. con questa PRO DI ho risolto il problema! Qualità del suono restituito eccezionale, lo valorizza senza colorarlo. Robustezza di un carrarmato. La qualità si paga e con i prodotti Radial Engineering si va a colpo sicuro ad occhi chiusi. Venditore eccezionale: il tutto è arrivato con 1 giorno di anticipo e impacchettato con cura e protezione più che adeguata.

## Features

- Passive Mono Direct Box with Custom Transfmer Rugged I-beam Construction

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000A8J3N2 |
| Colour | multicoloured |
| Compatible devices | Audio Interface, DJ Equipment, Mixer |
| Control method | Touch |
| Department | Musical Instruments |
| Included components | Transformer |
| Is waterproof | False |
| Item model number | R8001100 |
| Item weight | 540 Grams |
| Manufacturer | Radial |
| Material | Synthetic |
| Model name | 100 |
| Mounting type | Tabletop Mount |
| Number of Items | 1 |
| Power source | Corded Electric |
| Product dimensions | 16.2D x 10.7W x 16.2H centimeters |
| Recommended uses for product | For Musical Instruments |
| Speaker size | 1 Inches |
| Speaker type | Multimedia |
| Special features | DI Boxes, Format: desktop, GroundLift: Yes, Level control: no, MS ID: REC0004850-000, Manufacturer: Radial Engineering, Number of channels: 1, Pad: yes, Pro Audio, Rack mounting possible: No, Signal type: line, Studio Hardware, Transmitter Balanced: Output Only, Tru: yes, User: Beginners & Advanced, Working method: passive |
| Subwoofer diameter | 10 Inches |
| Surround sound channel configuration | 1.0 |
| Unit count | 1 Count |
| Warranty type | Limited |
| Wireless communication technologies | No wireless communication technology |

## Product Details

- **Audio output mode:** Mono
- **Brand:** Radial
- **Connectivity technology:** XLR
- **Frequency response:** 18000 Hz
- **Speaker maximum output power:** 600 Watts

## Images

![Pro DI Passive Direct Box - Image 1](https://m.media-amazon.com/images/I/71zYMngCwpL.jpg)

## Questions & Answers

**Q: I have a radial pro48 active di. my interface gets too much signal out of it. will prodi send less? my pickups r active**
A: A common rule of thumb is to use an Active DI with a Passive Bass and a Passive DI with an Active Bass.  That allows the passive DI to handle the active bass hotter signal and the active DI to bump up the level from a passive bass.

**Q: Could this di be used to plug my electric drum set into my system?**
A: If your electric drums have a 1/4" output and your "system" has XLR input (just like my drums and mixer do) then the answer is YES.

**Q: Is this box good for electric guitar like fender stratocaster**
A: very good di, but it is a passive box. your guitar needs to send a line level signal into this di. I've connected this di from the output of a guitar amp or effects foot rack.

**Q: is this the one i need for active guitar pickups with a battery? emgs**
A: It should work with both passive and active pickup systems that use batteries.  I use it with both Fishman and L.R. Baggs systems.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by E***C on 18 December 2025*

Used for worship team at church. The best sound ever at a reasonable price.

### ⭐⭐⭐⭐⭐ Review
*by P***E on 28 January 2023*

Conosco la qualità Radial perché ho altri loro prodotti ma fino a poco tempo fa non avevo bisogno di una DI e soprattutto con 2 output. Ne ho provata una di altra marca, economica, ma l'ho dovuta restituire subito.. con questa PRO DI ho risolto il problema! Qualità del suono restituito eccezionale, lo valorizza senza colorarlo. Robustezza di un carrarmato. La qualità si paga e con i prodotti Radial Engineering si va a colpo sicuro ad occhi chiusi. Venditore eccezionale: il tutto è arrivato con 1 giorno di anticipo e impacchettato con cura e protezione più che adeguata.

### ⭐⭐⭐⭐⭐ Review
*by D***N on 1 June 2015*

I use it with electric guitar and bass and it does a great job of eliminating the previous hiss and hum that was present on my recordings.It does so while adding more definition and clarity to the notes.On the bass I feel it adds higher frequencies in a pleasant manner.

## Frequently Bought Together

- Radial Pro DI Passive Direct Box
- Radial ProD2 Passive 2 Channel Direct Box
- Radial Pro48 Active 48-Volt Compact Direct Box

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ec/products/315932057-pro-di-passive-direct-box](https://www.desertcart.ec/products/315932057-pro-di-passive-direct-box)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-03*