Audio Research SP7 in really nice physical condition. This is an 'as is sale' with no returns accepted. We were an Audio Research dealer for many years but I don't know the origin of this unit. I have taken a picture of the serial number 75323004 so you know the item you are bidding on and will receive is the same as in the pictures.
I plugged the SP7 in and the pilot lights came on immediately but no other checks were done. As you can see it is rack mount. I could not find the instruction book but I was able to find the Audio Research schematic which will be included. There is no original box or packing but I will pack it very securely and it will be shipped FedEx Ground.