Clear sound quality with reduced noise is achieved through 24-bit/48 kHz full digital processing. Also, when the internal electric crossover function is used, the balance of the bass sound of the speakers and subwoofers can be adjusted optimally to achieve clear and powerful sound quality. Furthermore, this unit is equipped with a USB sound card, so audio signals can be input and output between this unit and a computer in their original digital format with no loss of sound quality.