Direct Box

A direct box (often called a DI Box; short for “direct injection” box), is used to convert high impedance line level audio signals to low impedance mic level signals. Traditionally these devices have a female ¼” input, an XLR male output, and either a ¼” output or another ¼” jack that parallels the input jack. This secondary jack is often used to feed an instrument amplifier. A typical set up can be as follows: bass guitar plugs into the DI box, the XLR output of the DI box is plugged into a mixer, and the ¼” output is plugged into the bass player’s amplifier.
DI boxes often have additional features such as a PAD to reduce the signal strength of the incoming audio signal, and a ground lift switch. DI’s are available in passive and active varieties. Active DI’s require phantom power to operate.

This page has been seen 3,972 times.

Industry Advertising

Recent Activity

Readability Information

An automated review of this page attempts to determine its readability in English (US). The page contains roughly 143 words across 7 sentences.
Readability score
Readability score: 47.07
Grade level
For the information in this page to be accessible to the widest audience of readers, both a high readability score and a low grade level are ideal.

Icon Legend

  • Normal page
  • Color code

    • Content has new updates
    • Content has no updates

CB Advertising