The term CONCERT EQUIPMENT refers to the various pieces of equipment used in a live performance. This includes an AMP, which is an abbreviation for amplifier, a device that increases the volume of sound. AMPS is an acronym for Amplified Musical Performance System, a system of amplifiers and speakers used to increase the sound of a live performance. ENCORE is a French word meaning 'AGAIN' or 'one more time', and is often used to refer to an ENCORE performance at the end of a concert. ODEA is an acronym for Outdoor Entertainment Audio, which is a type of audio system designed for outdoor concerts.