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Pyle-Pro PDC21 1/4'' Instrument To Balanced & Unbalanced (1/4''/XLR) Direct Box

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Direct Box
Direct Box
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Inputs & Outputs
Inputs & Outputs
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Connect to High-Power Signals
Connect to High-Power Signals
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Convert the Output of Unbalanced Devices
Convert the Output of Unbalanced Devices
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Professional Power

A direct box, or DI box, provides the facility for the direct insertion of an audio signal into a mixer or recorder. The PDC21 offers a variety of DI solutions for live sound and recording applications. You can connect all kinds of audio signals like guitars, keyboards, outboard signal processors and even high-powered speaker output from an amplifier. This unit enables you to tap off the signal from a guitar or bass guitar and pass the signal from the Para Output to the on stage amplifier without affecting the original sound. This can eliminate the need for mixing the guitar amplifier, which in many cases is preferable, especially with bass guitar.

Clean Audio

The unit is also very useful for connecting unbalanced signals from sources like signals DJ and sub-mixers, effects processors and keyboards to a main PA or recording mixer. The PDC21 balanced output provides a clean signal at a low level as long as runs of cable are possible. Another benefit from a balanced connection is common mode rejection, which provides cancellation of unwanted sounds (hums and buzzes) while leaving the original signal pure.

Direct Insertion of an Instrument to PA System

One of the most popular uses of a DI box is getting the signal of the bass guitar to the PA system. Simply put, the low frequencies produced by bass are difficult to mic/record, so use of a DI box is almost always preferable.


Have the capability of tapping off signals from amplifiers, such as the output or guitar amp or power amplifier. You can even connect this unit to the speaker output of a consumer stereo system or boom box --if you want to sample some old records or cassette tapes.

This DI box also does a great job in the studio for connecting unbalanced devices. For instance, the output levels of many keyboards are low, so their signals can benefit generally by connecting their unbalanced outputs to the unit which makes the signal to move cleanly without interruption. The signal will be allowed to travel for long distances while benefiting from the low noise and common mode rejection provided by this unit's balanced low-level output.

Additional Features

  • All Steel Chassis
  • Input: 1/4" Connector
  • Balanced Output - Male XLR Connector
  • Instrument Input: 50K Unbalanced TS Jack
  • Parallel (Link) Out: 50K Unbalanced TS Jack
  • ATT Switch - Input Attenuation, Switchable (0dB, -20dB, -40dB)
  • Ground - When Engaged, the Ground from the Chassis Detaches from XLR Jack
  • Output: 1/4" Para Out (For Passing Input Signal Through to Stage Amp or Monitor System)
  • Dimension: 4.72'' X 3.01'' X 1.77''
    • Input: 50k unbalanced TS 1/4" plug - balanced output: 600 XLR jack

    • Features a 1/4" Parallel Pass-through (Link) Circuit

    • Input Attenuation: Switchable (0db, -20db,-40db) - Switchable Ground Lift

    Product Information   Specifications for Pyle-Pro PDC21 1/4'' Instrument To Balanced & Unbalanced (1/4''/XLR) Direct Box Below:

    Manufacturer Sound Around
    Brand PylePro
    Color Black
    Model PDC21
    UPC 809187123799
    Item Weight 0.88 pounds
    Item Size 3.3 x 5 x 5 inches
    Package Weight 0.95 pounds
    Package Size 3.6 x 2 x 2 inches
    Units in Package 1

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