I am offering my vintage Digitech IPS33 Smart Shift intelligent pitch shifter. This is one of the first intelligent pitch shifters, released in the late 1980's. Instead of providing only parallel harmony the IPS33 allows you to specify the key and the scale that you want. In addition to pitch shifting, this unit also provides very nice chorus effects using its mild detuning capabilities. I am the original owner and this unit has lived its entire life in a rack with limited use. The only cosmetic damage whatsoever is a bit of rack rash on the bottom from taking it in and out of the rack a few times; otherwise it is perfect. The original box was not provided when I bought this unit, but I do have the original manual, which will be included.