---
product_id: 56106393
title: "Radial J48 Active Direct Box"
brand: "radial"
price: "98538 som"
currency: KGS
in_stock: true
reviews_count: 6
url: https://www.desertcart.kg/products/56106393-radial-j48-active-direct-box
store_origin: KG
region: Kyrgyzstan
---

# High 9V Rail Voltage for Dynamic Instruments 48V Phantom Power Steel Chassis for Stage Durability Radial J48 Active Direct Box

**Brand:** radial
**Price:** 98538 som
**Availability:** ✅ In Stock

## Summary

> 🎤 Elevate Your Soundstage — The DI Box That Means Business

## Quick Answers

- **What is this?** Radial J48 Active Direct Box by radial
- **How much does it cost?** 98538 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/56106393-radial-j48-active-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

- • **Versatile Connectivity:** 1/4" input and thru, merge stereo to mono, plus polarity flip switch for seamless integration with any stage rig or multimedia setup.
- • **Compact & Rugged Design:** Solid alloy steel chassis built to withstand the rigors of touring while maintaining a sleek, portable footprint.
- • **Pro-Grade Active DI Power:** Powered by 48V phantom power with a robust 9V rail voltage to handle the most dynamic basses and acoustic guitars without clipping.
- • **Noise-Free Signal Isolation:** Ground lift and steel EM shielding eliminate hum and buzz, ensuring crystal-clear balanced output every time.
- • **Feedback Control & Signal Integrity:** Built-in low cut filter and pad switch protect your sound from feedback and overload, delivering pristine audio clarity.

## Overview

The Radial J48 Mk2 is a premium active direct box designed for professional musicians and audio engineers seeking superior sound isolation and signal integrity. Powered by 48V phantom power and featuring a high 9V rail voltage, it flawlessly handles dynamic instruments like active basses and acoustic guitars. Its rugged steel chassis offers stage-ready durability, while versatile input/output options and noise elimination features ensure your signal stays clean and powerful. Compact yet robust, the J48 Mk2 is the go-to DI for those who demand flawless audio performance and reliability.

## Description

Radial J48 Mk2 Premium Active DI - DI Box

Review: Worth every penny! - Amazing sounding DI box. Really can't believe how much difference this DI box makes. Awesome on bass guitar.
Review: 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 transformed 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 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 depend on the unit's "rail voltage" to prevent clipping. The more dynamic the insturment and performance, the more rail voltage you'll need. This unit features a rail voltage of around 9V which is much higher than comparable Active DIs. This is important with the modern generation of pre-amplified (powered) acoustic guitars, active basses, ect as these signals can be quite dynamic electrically. Why do you need a DI? Whether your using an instrument 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 create problems with loss of signal, and unwanted buzz and hum. And at the worst (and actually very likely with Phantom Power) short out your device. PAs that use Phantom Powered mic lines and these will instantly overpower any device mentioned above. Instead you need something to transform and isolate the two halfs of the system. This devices transformer and circutry does just that. Also even on a mic line that is unpowered, there is a risk to the pre amp in the PA when sending unbalanced line level signals to it. In other words... Buy a DI! The details. This unit is a powered unit that requires 48V Phantom power to be on the XLR line to supply the unit with power. It has an indicator light that shows Phantom power but stays on only momentarily. 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 one of my applications. On the input side is a "pad switch" to signals that are really dynamic and may potentially clip. 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. Because it is a powered unit and has electronic circuitry they have included some extra isolation to protect the signal and preserve that continuity for the power supply. The device is built to isolate grounds automatically, but if you still have noise you suspect due to grounds, try this. Lastly it features a low cut filter button that is used in preventing feedback. 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. This is my 3rd DI from Radial. I have to say at this point I'm a fan of their gear. This unit is definitely a professional quality DI with a reliability and sound quality that tour musicians require but at a price point just about anyone can afford. I bought this one to play by Italia Mondial through, it has an active pickup inside the hollow body and I have to say, it sounds tremendous played through this box. BTY, if you're looking for a Passive DI (one that requires no external power), look into the JDI by Radial. There are cheaper models from them, but this one sounds great no matter what you drive through it.

## Features

- DI-Boxen
- Studio Hardware
- Pro Audio
- We emphasise a balanced combination of careful workmanship and selected materials.
- OUR GOAL - Your satisfaction is our top priority and takes centre stage.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002GIRJI |
| Batteries | 1 9V batteries required. |
| Best Sellers Rank | 72,954 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 59 in DI Units |
| Body Material | Alloy Steel |
| Colour | Blue |
| Connector | 3 Pin XLR, 1/4 |
| Customer Reviews | 4.6 4.6 out of 5 stars (113) |
| Date First Available | 6 Aug. 2012 |
| Item Weight | 720 g |
| Item model number | R8003001 |
| Material Type | Alloy Steel |
| Product Dimensions | 16.51 x 10.41 x 7.87 cm; 720 g |
| Voltage | 48 Volts |

## Product Details

- **Brand:** Radial
- **Colour:** Blue
- **Material:** Alloy Steel
- **Item weight:** 0.72 Kilograms
- **Connector type:** 3 Pin XLR, 1/4

## Images

![Radial J48 Active Direct Box - Image 1](https://m.media-amazon.com/images/I/71HD0M+zLrL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worth every penny!
*by A***S on 24 September 2019*

Amazing sounding DI box. Really can't believe how much difference this DI box makes. Awesome on bass guitar.

### ⭐⭐⭐⭐⭐ Review
*by D***X on 7 December 2012*

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 transformed 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 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 depend on the unit's "rail voltage" to prevent clipping. The more dynamic the insturment and performance, the more rail voltage you'll need. This unit features a rail voltage of around 9V which is much higher than comparable Active DIs. This is important with the modern generation of pre-amplified (powered) acoustic guitars, active basses, ect as these signals can be quite dynamic electrically. Why do you need a DI? Whether your using an instrument 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 create problems with loss of signal, and unwanted buzz and hum. And at the worst (and actually very likely with Phantom Power) short out your device. PAs that use Phantom Powered mic lines and these will instantly overpower any device mentioned above. Instead you need something to transform and isolate the two halfs of the system. This devices transformer and circutry does just that. Also even on a mic line that is unpowered, there is a risk to the pre amp in the PA when sending unbalanced line level signals to it. In other words... Buy a DI! The details. This unit is a powered unit that requires 48V Phantom power to be on the XLR line to supply the unit with power. It has an indicator light that shows Phantom power but stays on only momentarily. 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 one of my applications. On the input side is a "pad switch" to signals that are really dynamic and may potentially clip. 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. Because it is a powered unit and has electronic circuitry they have included some extra isolation to protect the signal and preserve that continuity for the power supply. The device is built to isolate grounds automatically, but if you still have noise you suspect due to grounds, try this. Lastly it features a low cut filter button that is used in preventing feedback. 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. This is my 3rd DI from Radial. I have to say at this point I'm a fan of their gear. This unit is definitely a professional quality DI with a reliability and sound quality that tour musicians require but at a price point just about anyone can afford. I bought this one to play by Italia Mondial through, it has an active pickup inside the hollow body and I have to say, it sounds tremendous played through this box. BTY, if you're looking for a Passive DI (one that requires no external power), look into the JDI by Radial. There are cheaper models from them, but this one sounds great no matter what you drive through it.

### ⭐⭐⭐⭐⭐ Review
*by E***N on 22 August 2024*

Works great, excellent quality, great brand

## Frequently Bought Together

- Radial J48 MK2 48V Phantom Power Active Direct Box
- Radial Engineering R8001010JDI Single-Channel Passive Direct Box with Jensen Transformer
- Radial ProD2 Passive 2 Channel Direct Box

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-03-17*