Audio having phase adjustment circuit

PURPOSE: An audio is provided to prevent an interference between front and rear speakers using a phase adjusting circuit. CONSTITUTION: A phase adjusting part(400) divides a sound signal from a volume control part(200) and outputs a phase-adjusted sound signal to a rear channel equalizer. The volume control part(200) receives an audible frequency from a tuner and deck part(100) and divides a sound to four channels. The phase adjusting part(400) comprises the first LPF(410) and the first HPF(420), which remove a sound over a predetermined value, and the second LPF(430) and the second HPF(440), which removes a sound below a predetermine value. The phase adjusting part(400) comprises the first sum circuit(450) for summing sound signals passing the first LPF and the first HPF, and the second sum circuit(460) for summing sound signals passing the second LPF and the second HPF.