This item has been in long-term storage. The box is damaged, but the instruction manual and the SC-8820 unit itself are in relatively good condition for their age. I have only confirmed that it powers on. I'm not sure about the original set configuration, but it seems that the number of cables listed on the box is insufficient. Everything included is shown in the photos. I am selling this due to my brother's move. I do not know how to use it, so please purchase only if you understand this. Please also check my profile.