---
product_id: 6691875
title: "Radial Engineering R8001010JDI Single-Channel Passive Direct Box with Jensen Transformer"
brand: "radial engineering"
price: "C$31992"
currency: NIO
in_stock: true
reviews_count: 8
url: https://www.desertcart.ni/products/6691875-radial-engineering-r8001010jdi-single-channel-passive-direct-box-with-jensen
store_origin: NI
region: Nicaragua
---

# Zero Phase Distortion Eliminates Ground Noise Jensen Transformer Radial Engineering R8001010JDI Single-Channel Passive Direct Box with Jensen Transformer

**Brand:** radial engineering
**Price:** C$31992
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate Your Sound Game!

## Quick Answers

- **What is this?** Radial Engineering R8001010JDI Single-Channel Passive Direct Box with Jensen Transformer by radial engineering
- **How much does it cost?** C$31992 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/6691875-radial-engineering-r8001010jdi-single-channel-passive-direct-box-with-jensen)

## Best For

- radial engineering enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Portable:** Designed for easy transport, perfect for gigs and studio sessions.
- • **Professional Quality:** Engineered for musicians and audio professionals who demand the best.
- • **Pure Audio Integrity:** Enjoy virtually zero phase and harmonic distortion for a true sound experience.
- • **Transform Your Sound:** Experience pristine audio clarity with the renowned Jensen transformer.
- • **Noise-Free Performance:** Say goodbye to buzz and hum with advanced ground loop elimination.

## Overview

The Radial Engineering R8001010JDI is a single-channel passive direct box featuring a high-quality Jensen transformer, designed to eliminate unwanted noise and distortion, ensuring your audio remains crystal clear in any setting.

## Description

JDI Passive Direct Box

## Features

- Equipped with Jensen transformer
- Eliminates buzz and hum from ground loops
- Virtually zero phase and harmonic distortion

## Images

![Radial Engineering R8001010JDI Single-Channel Passive Direct Box with Jensen Transformer - Image 1](https://m.media-amazon.com/images/I/71KQF70mljL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great DI
*by A***R on May 24, 2025*

Great DI

### ⭐⭐⭐⭐⭐ Terrific Passive DI
*by D***X on February 16, 2011*

The other reviewer gave excellent specifics about the tone and feel with vintage instruments and amps. This is what this box was designed for and where it will really shine. My application is a little different. I wanted a quality "passive DI" for multimedia and for the occasionaly electric-accoustic guitar input.What is a DI (AKA a Direct Box)?A DI is basically a device that in the most basic sense electrically isolates and transforms unbalanced line level signals (signals from most stage instruments and most consumer electronics) to balanced line level (on both powered and unpowered lines) singnals commonly found on PAs and stage mixers used for mics. There are two categories...Passive and Active. Passive DIs do not require any addition power source like batteries or AC input. They are simply a transformer that transforms the input signal to an output signal. I will skip the physics of it though. Active DIs are a little more complex and generally cost more. Sound quality on cheaper models can be really horrible. These DO require additional power such as batteries or "Phantom Power" on the higher end units. Without getting too deep into the physics here, these are essentially a pre-amp and depend on the unit's "rail voltage" to prevent clipping. The more dynamic the insturment and performance, the more rail voltage you'll need. As I said though, this is passive DI so it's produces a nice subtle sound curve even as it reaches satuaration (passive DI speak for overdrive.) Rather than clip they "fill up."Why do you need a DI?Whether your using an insturment or a multimedia device like a DVD, iPod, or laptop...these will almost always be unblanced line level outputs either thru 1/4" jack, 1/8" jack, or RCA jacks. Just using a cable adaptor to mate these with the common 3-pin XLR for balanced line level signals found on PAs and mixers will at the very least cause you to loose sound quality and level. Potentially buzz and hum, possibly (and acutally very likely) short out your devices audio output OR even worse, damage the input line on the PA costing you dearly. Many professional mixing consoles use Phantom Powered mic lines and these will instantly overpower any device mensioned above. Instead you need something to transform and isolate the two halfs of the system. This devices transformer and circutry does just that. Also there is an electrical difference between balanced and unbalance signals. This DI does, convert the unbalanced input to a balanced output sent over XLR.The details. First off, I pleased to say that this unit is the newer model JDI. This is not the mk3, but the next gen. I'm very happy about that dispite the description. Inside this box is a genuine Jenson audio transformer, reguarded for their superior sound quality especially with vintage equipment. On the input side you get a 1/4" in and 1/4" thru for passing to a stage amp. Or you can use "merge" button and combine the two jacks to convert a L and R stereo signal to mono. Nice for multimedia and keyboards. I'm using a Hosa 3.5mm TRS to Dual 1/4 in TS (1/8" stereo jack to dual mono 1/4" jacks) for my application. On the input side is a "pad switch" to soften sounds like MP3 and CD players. On the Output side is a single balanced XLR output (1 channel mono), a 180 degree "flip switch" for reversing polarity to work with foreign made sound equipment. It has a ground lift switch to isolate grounds and get rid or noise due to ground loops. The device is built to isolate grounds automatically, but if you still have noise you suspect due to grounds, try this. Lastly is a speaker parallel button that I'm not entirely sure what it's used for. it's small in size, about 4"x6"x1.5" and roughly 2 lbs. It's made of a solid steel case to protect it from damage on stage while at the same time create an "EM cage" to shield the internal electronics from outside interference.All in all it's a great box with excellent sound quality. It's far more than I need, but I hope to grow into it. For users that don't want to spend an arm and a leg Radial does make really great DIs that aren't as expensive. For AV/multimedia users there's the ProAV1 which is purpose built as a swiss army knife solution for hooking your audio out to any PA or stage mixer. For instrument users there's as many DIs as stars in the sky to fit any budget.

### ⭐⭐⭐⭐⭐ Industry standard for a reason
*by E***D on February 16, 2025*

After the nuclear holocaust, there will only be cockroaches and JDIs

## Frequently Bought Together

- Radial Engineering R8001010JDI Single-Channel Passive Direct Box with Jensen Transformer
- Radial JDI Stereo Premium Passive DI - DI Box

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-14*