This is a highly sought-after 8-band audio processor. Due to its age, it will require some attention to bring it back to optimal condition. I was able to power up the unit and pass audio through it, and all functions appear to be working as intended. That said, it will almost certainly benefit from a full recap and replacement of the slide potentiometers to ensure long-term reliability and performance. The unit is being sold as-is; however, returns are accepted provided the item has not been modified or damaged after purchase.