I Use Plinius 8200mk2 as well, and I have a pair of Spendor SP2/3R bookshelves. They are rather large bookshelves, if your listening room isn't too large, SP2/3R is a good all rounder. I have two cats on my own so i know how annoying it is. As i found out one of my cats jumped up the speakers at night, i now get some cardboards with spray on(called "keep off"), and leave them on top of the speakers overnight. Yet if your speaker stand is 50cm or below, cats can reach it, they won't understand why you are raising your voice and run toward them while they are having fun scratching.
Just experiment some smell with your cat, get the strong smell it doesn't like and place it on top and around it, so your cat will be conditioned to dislike that area, mind you cats only have memory related to feeding and hunting, for everything else, it's your effort to remind your cat on daily basis!
good luck
Just experiment some smell with your cat, get the strong smell it doesn't like and place it on top and around it, so your cat will be conditioned to dislike that area, mind you cats only have memory related to feeding and hunting, for everything else, it's your effort to remind your cat on daily basis!
good luck