I'm weekend woodworker so I built a cabinet to fit the 990 and my other equipment. The shelves are 22" deep to accommodate the 990 and the cables. I use Outlaw's balanced cables and they are pretty stiff so they take more room than the cables with RCA connectors. Even with the deep cabinet I planned on cutting an access hole in the cabinet back behind the 990 so I can run all the wires along the cabinet's back and out of sight.

Cable management can be difficult given the number of cables from all the components that connect to the 990 and the cables only come in a few standard lengths. I ended up making my own RCA cables to specific lengths based upon the way I arranged my components in the cabinet I built.

As odd as it may feel and after careful planning, I'd get the saber saw out and cut a retangular hole about an inch less than the dimensions of the 990 in the back of your new cabinet.