Cleaning Your Speakers

[The Lost Bears]

What do you use to clean and polish your Sonus Faber speakers?

I have a pair of the Elipsa SE with the high gloss violin red finish. They also have the black leather part in the front. So far I have only dusted them. Is there a product that will work on both parts? One of my main concerns is that I don't want the leather to dry out. But I also want to keep them looking like new. Any suggestions would be greatly appreciated. Thanks, Tom