Fidelity seemed to go through a period of mixing and matching various combinations of program, processor speed, housing and features. The Super 9 is rare today because it drew the short straw on the more important of these components. In Computer Chess Digest 1984 the reviewer Enrique Irazoqui gave it this short writeup :-
“Take Elite A/S’s brain, Champion’s clockspeed, Sensory 9’s housing, add a display and you’ll get a Frankensteinized chess computer: Super 9. Not exactly the most beautiful machine available. Considerably more expensive than Sensory 9B and Constellation, and also slightly weaker, it has instead all the enjoyable features that the other two machines lack. Nevertheless, even though it offers a very decent value, I find it quite difficult to accept compromises in strength in order to favour features. I mean to say that my reaction towards Super 9 is rather lukewarm. And boy, is it ugly!”
Back in 1983 strength of play was the number one selling point. A weaker chess computer had to be cheap or offer something unique. So not many Super 9s were sold.
The Super 9 comes in two versions, the one you see and the Super 9 De Luxe (link) which uses the Voice Sensory wooden case and has a faster processor. Super 9s are quite hard to find in either version.
This one came from Canada. The chess computer is in very nice condition, but the box is in excellent condition which must be a rarity in itself.