When I have had cats in the house, I have used two approaches:
1. Keep the cats out of the listening room. If this is not possible,
2. Cut two squares of cardboard the width of the panels, and pierce them with carpet tacks. Put them on the floor in front of the panels, points up, when you are not around to supervise the kitters. It will only take a couple of missteps on their part to keep them away, and it won't harm them. If you don't like the tacks idea, cover the squares with double sticky carpet tape. Not quite as effective as tacks, but if it is for kittens, they won't like it...
1. Keep the cats out of the listening room. If this is not possible,
2. Cut two squares of cardboard the width of the panels, and pierce them with carpet tacks. Put them on the floor in front of the panels, points up, when you are not around to supervise the kitters. It will only take a couple of missteps on their part to keep them away, and it won't harm them. If you don't like the tacks idea, cover the squares with double sticky carpet tape. Not quite as effective as tacks, but if it is for kittens, they won't like it...