There are numerous applications for audio-visual baluns, some of the most frequent include: church and worship, home theater, corporate audio-visual, education, and security applications. Each has its own requirements, and each has baluns which are engineered as a specific solution for the application.

Balun. n. A transformer which converts a balanced signal to an unbalanced signal and vice versa.

Baluns make the necessary impedance adjustments for transmitting unbalanced audio-visual signals over balanced cabling.