AV System is electronic media possessing both a sound and a visual component, such as slide tape presentations, films, television programs, corporate conferencing, church services, and live theatre productions.

Audio-visual service providers frequently offer web streaming, video conferencing, and live broadcast services.

Computer-based audio-visual equipment is often used in education, with many schools and universities installing projection equipment and using interactive whiteboard technology.

AV system is used to receive all audio and visual input and process the signal before sending it to amplifier or zone selector.