While retaining the ADC-3's superior sound quality, we attained to reduce the white noise significantly that is peculiar to the analog chorus in addition to the new versatile features. Traditional rich and warm analog chorus sound is achieved through the use of a BBD chip, giving remarkable width and depth. The 3-way Mode switch offers sounds from spacious and deep to mild and clear chorus. The new Mix feature enables to control the balance of effect level. The new double-contact grounding circuit (D.C.G. Circuit) uses the sleeve of the output jack as another point of contact to the pedal's ground circuit to avoid loose connection and offer improved sound quality. The LED will begin to go out when the battery voltage drops below 7 volts.