---
product_id: 2393648
title: "Premium Direct Injection Audio Box - 2.36\" x 4.09\" Passive DI Unit Hum Eliminator w/ Input Attenuator to Connect Guitar & Bass, 1/4'' Impedance Transformer Connector to Balanced & Unbalanced XLR"
brand: "pyle"
price: "199.58 DT"
currency: TND
in_stock: true
category: "Pyle"
url: https://www.desertcart.tn/products/2393648-premium-direct-injection-audio-box-2-36-x-4-09
store_origin: TN
region: Tunisia
---

# 50KΩ instrument input impedance Switchable ground lift for hum elimination Input attenuation: 0dB, -20dB, -40dB Premium Direct Injection Audio Box - 2.36" x 4.09" Passive DI Unit Hum Eliminator w/ Input Attenuator to Connect Guitar & Bass, 1/4'' Impedance Transformer Connector to Balanced & Unbalanced XLR

**Brand:** pyle
**Price:** 199.58 DT
**Availability:** ✅ In Stock

## Summary

> 🎛️ Elevate your sound game—ditch the noise, keep the vibe!

## Quick Answers

- **What is this?** Premium Direct Injection Audio Box - 2.36" x 4.09" Passive DI Unit Hum Eliminator w/ Input Attenuator to Connect Guitar & Bass, 1/4'' Impedance Transformer Connector to Balanced & Unbalanced XLR by pyle
- **How much does it cost?** 199.58 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/2393648-premium-direct-injection-audio-box-2-36-x-4-09)

## Best For

- pyle enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Audio Hub:** Perfect for live performances, recording, or sampling from consumer stereo systems with balanced/unbalanced outputs.
- • **Hum & Buzz? Not Here!:** Switchable ground lift eliminates annoying hum and ground loops for pristine sound clarity.
- • **Tailored Signal Control:** Adjust input levels with three attenuation settings to match any stage or studio setup.
- • **Built to Last, Built for Sound:** All-steel chassis ensures durability while delivering low distortion and noise-free audio.
- • **Seamless Instrument Integration:** Connect guitars, basses, keyboards effortlessly with ¼” TS input and balanced XLR output.

## Overview

The Pyle Premium Direct Injection Audio Box (PDC21) is a compact, passive DI unit designed to convert unbalanced instrument signals into balanced outputs with minimal noise and distortion. Featuring a 50KΩ input impedance, switchable ground lift to eliminate hum, and selectable input attenuation levels, it ensures clean, professional audio for guitars, basses, keyboards, and more. Its rugged steel chassis and versatile connectivity make it an essential tool for live sound and recording environments.

## Description

Pylepro model: Pdc211/4'' Instrument to balanced & Unbalance1/4'' Instrument to balanced & unbalanced (1/4''/XLR) direct box construction: All steel chassis ground lift: switch-able ground lift balanced output: 600 balanced XLR jack instrument input: 50K unbalanced TS jack parallel (link) out: 50K unbalanced TS jack input attenuation: switch-able (0dB, -20dB,-40dB) dimension: 4.72'' X 3.01'' X 1.77''The dc-21 is one of the most useful and versatile tools available indispensable in enabling easy interfacing and connection between various audio gear in numerous applications.Pyle PDC21 is a necessity if you are looking for the biggest quality of sound, with low distortion, noise, and eliminate ground loops. A DI unit, DI box, Direct box, Direct input, direct injection or simply DI is an electronic device that connects a high impedance, line level, unbalanced output signal to a low impedance mic level balanced input, usually via XLR connector. Dis are frequently used to connect an electric guitar or electric bass to a mixing console's microphone input. The DI performs level matching, balancing, and either active buffering or passive impedance bridging to minimize noise, distortion, and ground loops. Dis do not perform impedance matching. Pyle has been in business for over 35 years, and their manufacturing experience and expertise is easy to see - and hear.

## Features

- ¼ “ DEVICE CONNECTOR: Provides a variety of DI solutions with its ¼ inch device connector and detachable AC power cord for live sound recording applications. It allows you to easily connect keyboards, guitars & outboard signal processors
- PROVIDES CLEAN AUDIO: Useful for connecting unbalanced signals from sources submixers, effects processors & keyboards to a main PA or recording mixer. This impedance transformer also has buzz & hum cancellation ability
- EASILY CONNECTS INSTRUMENTS: Getting the signal of a musical instrument to the PA system is easier with this direct box. Just connect the electric bass, guitar, keyboard or other processors to the ground lift adapter & enjoy pure & clean audio
- VERSATILE DIRECT BOX: Aside from music instruments, the DI unit can also be connected to the line output of a boom box or consumer stereo system if you want to sample old records. The hum eliminator is used for connecting unbalanced devices as well
- Premium Direct Injection Audio Box - Passive DI Unit Hum Eliminator w/ Input Attenuator to Connect Guitar & Bass, 1/4'' Impedance Transformer Connector to Balanced & Unbalanced XLR, Black

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0027V760M |
| Best Sellers Rank | #1,046 in Musical Instruments ( See Top 100 in Musical Instruments ) #2 in Recording Signal Direct Boxes |
| Date First Available | April 27, 2009 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 13.4 ounces |
| Item model number | PDC21 |
| Manufacturer | Sound Around |
| Product Dimensions | 1.8 x 3.3 x 5 inches |

## Product Details

- **Brand:** Pyle
- **Connector Type:** XLR
- **Cable Type:** XLR
- **Compatible Devices:** Microphone, Musical Instrument
- **Special Feature:** Anti Noise

## Images

![Premium Direct Injection Audio Box - 2.36" x 4.09" Passive DI Unit Hum Eliminator w/ Input Attenuator to Connect Guitar & Bass, 1/4'' Impedance Transformer Connector to Balanced & Unbalanced XLR - Image 1](https://m.media-amazon.com/images/I/71+no+oB+RL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: From the description: "it is also a convenient tool for musicians as it can power up to 10 effects pedals." Is this true? How?  No power output.**
A: It's a passive unit and it will not power up any equipment  like guitar or keys. One end  has  unbalanced input (TR) and parallel out  the other end, has balanced  XLR so it can be used in a XLR mic input on a mixer.  The main purpose is so in a studio setting a guitar player can go into an amp via (parallel out ) and XLR to the  input on PA  /mixing board to record effects while recording . This will not solve your issue, Example -in my band we rehearse in my studio garage my bass player doesn't bring his amp-( to heavy ) he plugs his bass in to a DI box with 1/4 inch TR (Tip Ring) and the other end I use a XLR cable from the DI box to Mic input on my mixing board. It increases the impedance --Unbalanced  to Balanced.. It also has a ground lift to eliminate ground nose (BUZZ)  Look for a book "The Ultimate Live Sound Operators Handbook" by Bill Gibson It explains everything. Hope I was helpful.

**Q: Can I use this with an audio interface to reduce clipping on Guitar Rig 5?**
A: Yes. It will do this by converting then line input from your instrument into a balanced xlr for your audio interface. That is exactly why I purchased this

**Q: I need to transform a xlr balance output to and an unbalance one, can i use this device? looking the photo the xlr can be input or output! thanks**
A: Hi, yes you can use this unit. You may check other details of the unit by visiting our website pyleaudio.com. Type the model number on the search box PDC21 for more details. Thank you.

**Q: Could I use my balanced 1/4 to XLR cable to replace DI box?**
A: i tried to use balanced 1/4 with xlr adapter, and never got a reliable connection. di box worked fine.

## Frequently Bought Together

- Pyle Premium Direct Injection Audio Box - 2.36" x 4.09" Passive DI Unit Hum Eliminator w/ Input Attenuator to Connect Guitar & Bass, 1/4'' Impedance Transformer Connector to Balanced & Unbalanced XLR
- PYLE-PRO Premium Direct Injection Audio Box - Passive DI Unit Hum Eliminator w/ Input Attenuator to Connect Guitar & Bass - 1/4 Inch Impedance Transformer Connector to Balanced & Unbalanced XLR-PDC22 , Black
- Cable Matters 2-Pack 1/4 Inch TS to TS Electric Guitar Cable - 6ft, Guitar Amp Cord, Instrument Cable for ElectricGuitar, Mandolin, Bass AMP, Keyboard, Mixer, Equalizer

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-10*