Hi Hiluh, Although it is true that there are only 4 Analog XLR I/O, you can achieve up to 8 channels of AES/EBU with the DB25 connector, ADAT and FW cables respectively. And as Italo mentioned with the Multiple Machines bank, you can have from 4 to 8 I/O. Eventide is being represented at Messe in Frankfurt. You should stop by the booth if possible. Be well.