---
product_id: 740539453
title: "Pyle-Pro PDC21 1/4'' Instrument To Balanced & Unbalanced (1/4''/XLR) Direct Box by PylePro"
brand: "pyle"
price: "Bs.106112"
currency: BOB
in_stock: true
reviews_count: 5
category: "Pyle"
url: https://www.desertcart.bo/products/740539453-pyle-pro-pdc21-1-4-instrument-to-balanced-and-unbalanced
store_origin: BO
region: Bolivia
---

# 1/4'' instrument input Buzz & hum cancellation Balanced XLR output Pyle-Pro PDC21 1/4'' Instrument To Balanced & Unbalanced (1/4''/XLR) Direct Box by PylePro

**Brand:** pyle
**Price:** Bs.106112
**Availability:** ✅ In Stock

## Summary

> 🎤 Elevate your sound game—clean, clear, and connected like a pro!

## Quick Answers

- **What is this?** Pyle-Pro PDC21 1/4'' Instrument To Balanced & Unbalanced (1/4''/XLR) Direct Box by PylePro by pyle
- **How much does it cost?** Bs.106112 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/740539453-pyle-pro-pdc21-1-4-instrument-to-balanced-and-unbalanced)

## 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

- • **Hum & Buzz Eliminator:** Advanced common mode rejection keeps your audio clean and interference-free.
- • **Versatile Connectivity:** Connect everything from amps to consumer stereo systems with ease and confidence.
- • **Compact & Durable Design:** Steel chassis built to withstand the rigors of live gigs and studio sessions.
- • **Pro-Grade Balanced Output:** XLR output ensures ultra-low noise and long cable runs without signal loss.
- • **Seamless Instrument Integration:** Plug your guitar, bass, or keyboard directly with a 1/4'' input for pristine signal capture.

## Overview

The Pyle-Pro PDC21 is a passive direct injection box designed for professional live and studio audio applications. It converts unbalanced 1/4'' instrument signals into balanced XLR outputs, eliminating hum and buzz while preserving signal integrity. Compatible with guitars, basses, keyboards, and various audio devices, its rugged steel build and versatile connectivity make it an essential tool for clean, interference-free sound.

## Description

Professional Power Direct box or DI box provides the function of inserting audio signal directly into the mixer or recorder. The PDC21 offers a variety of DI solutions for live sound and recording applications. Connects all kinds of audio signals such as guitars, keyboards, outboard signal processors and even high-power speaker output from amplifiers. Tap off signals from guitar or bass guitar and pass the signal from para output to on-stage amplifier without affecting the original sound. This eliminates the need for mixing guitar amplifiers. In many cases, especially suitable for bass guitars. Clean Audio This unit is also very useful for connecting unbalanced signals from sources such as signal DJ and submixers, effect processors and keyboards to the main PA or recording mixer. The PDC21 balance output provides a low level and clean signal as long as the cables can be. Another benefit of a balanced connection is the Common Mode Rejection. This allows you to cancel unwanted sounds (hum or buzzer) while keeping the original signal pure. Insert instruments directly into PA system One of the most common uses for the DI box is to send the signal of the bass guitar to the PA system. Simply put, the low frequencies generated by bass are difficult for microphone/recording, and most cases are desirable to use DI boxes. Versatile. It has function to tap off signals from amplifiers such as output and guitar amplifier, power amplifier. If you want to sample your old record or cassette tape, you can also connect this unit to your consumer stereo system or boombox speaker output. This DI box also serves a great role in the studio for connecting unbalanced devices. For example, many keyboards have lower output levels, connecting an unbalanced output to the unit to ensure that the signal moves cleanly without interruption. The unit's balanced low level output benefits from low noise and common mode rejection, while the signal can go long distances

Review: Well constructed and works well - Very well made with attenuation transformer and clear functional diagram on the case, seems to work well though I have not tested it extensively yet.
Review: Perfect sound for my acoustics guitar - Perfect bright sound for my acoustic guitar

## Features

- ¼" Device Connector: ¼" device connector and removable AC power cord provide a variety of DI solutions for live sound recording applications. Easily connect keyboard, guitar and outboard signal processor
- Provides clean audio: helps connect unbalanced signals from the source submixer, effect processor, or keyboard to the main PA or recording mixer. This impedance transformer also features Buzz & Hum Cancellation
- EASY TO CONNECT INSTRUMENT: With this direct box, you can easily get the signal of your instrument to the PA system. Simply connect your electric bass, guitars, keyboards and other processors to the groundlift adapter to enjoy pure, clean audio
- UNIVERSAL DIRECT BOX: In addition to musical instruments, you can also connect DI unit to the line output of the boombox or consumer stereo system. Hum eliminator is also used for connecting unbalanced devices
- Premium Direct Injection Audio Box - Passive DI Unit Hum Eliminator with Input Attenuator to Connect Guitar & Bass, Connect 1/4" Impedance Transformer Connector to Balanced & Unbalanced XLR, Black

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Connector Gender | Male to Female |
| Compatible Devices | Microphone, Musical Instruments |
| Color Name | Black |
| Batteries Included | No |
| Batteries Required | No |
| Brand | Pyle |
| Manufacturer | Sound Around |
| Item Model Number | PDC21 |
| Model Year | 2011 |
| Special Features | Data Transfer |
| Material | Steel |
| Cable Type | XLR |
| Product Dimensions | 4.57 x 8.38 x 12.7 cm; 330 g |

## Product Details

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

## Images

![Pyle-Pro PDC21 1/4'' Instrument To Balanced & Unbalanced (1/4''/XLR) Direct Box by PylePro - Image 1](https://m.media-amazon.com/images/I/71GCEiuNx0L.jpg)
![Pyle-Pro PDC21 1/4'' Instrument To Balanced & Unbalanced (1/4''/XLR) Direct Box by PylePro - Image 2](https://m.media-amazon.com/images/I/71Q68xgsHkL.jpg)
![Pyle-Pro PDC21 1/4'' Instrument To Balanced & Unbalanced (1/4''/XLR) Direct Box by PylePro - Image 3](https://m.media-amazon.com/images/I/71tJZuvzpNL.jpg)
![Pyle-Pro PDC21 1/4'' Instrument To Balanced & Unbalanced (1/4''/XLR) Direct Box by PylePro - Image 4](https://m.media-amazon.com/images/I/81MKxob7jdL.jpg)
![Pyle-Pro PDC21 1/4'' Instrument To Balanced & Unbalanced (1/4''/XLR) Direct Box by PylePro - Image 5](https://m.media-amazon.com/images/I/81r90XB2exL.jpg)

## 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Well constructed and works well
*by S***A on February 20, 2024*

Very well made with attenuation transformer and clear functional diagram on the case, seems to work well though I have not tested it extensively yet.

### ⭐⭐⭐⭐⭐ Perfect sound for my acoustics guitar
*by K***N on April 14, 2025*

Perfect bright sound for my acoustic guitar

### ⭐⭐⭐⭐⭐ Excelente opción y un excelente precio
*by J***S on February 6, 2025*

La diferencia es de noche a día. Yo la utilizo para conectar mis guitarras y bajos a mi interface de audio (scarlet) y el resultado es muy bueno, corta todo ese ruido que había antes y obtienes una señal limpia. La caja en sí está muy bien construida, se siente de buenos materiales. La verdad es la mejor opción por el precio, no duden en comprarla.

## 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 Bolivia*
*Store origin: BO*
*Last updated: 2026-02-19*