It is for the system 3300 but will work equally well with the 3500/4500 systems and, as pointed out, the plastic beocenters of the 1980's.
Beomaster 3300 fits on top, cassette & cd on middle shelf & turntable on the bottom shelf.
Chris.
The use of metaphors should be avoided like the plague. They're like a red rag to a bull to me.