Live sound and performance · updated 2026-08-16
DI BOX
Converts an unbalanced instrument-level signal to a balanced mic-level one so it can run long cable to the desk.

SOURCES AND CITATIONS
Free, primary references for di box — standards bodies, manufacturers, government offices and university course material.
RELATED TERMS IN LIVE SOUND AND PERFORMANCE
- FOH
- Monitor mix / IEMs
- Feedback
- Line check vs soundcheck
- Stage plot and input list
- Backline
- Hearing protection and exposure limits
- Gain before feedback
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