Through the analog inputs, you can bring 16 signals into the EZbus; four additional signals from the digital inputs can be routed to the Mix bus or Alt bus via the four "virtual" returns. In this manner, you can bring a total of 20 signals into the EZbus. At a minimum, you can bring eight signals into the EZbus, each of which can be independently processed with EQ and dynamics. These signals can be from either analog or digital sources.