The term CONCERT BLASTER is a combination of two words, 'CONCERT' and 'blaster'. CONCERT is a live performance of music, while blaster is a device used to amplify sound. The crossword solution for this term is AMP, which stands for Amplifier. An amplifier is an electronic device that increases the strength of a signal, such as sound, before sending it to a speaker. Therefore, CONCERT BLASTER can be defined as a device used to amplify sound at a CONCERT.