Best way to clean glossy finish on speakers?

I have a microfiber cloth and distilled water and isopropyl alcohol. 

I can use all this to clean a TV screen and my glasses, but is there a preferred way to clean pristine glossy finish on speaker cabinets so that trace scratching does not appear?.



On the Wilsons, I'm a Griot's quick detailer fan.  Point has been made here, but not too clearly, spay you favorite cleaner on the cloth and apply, not directly on the speaker.

Have fun...

I use a microfiberr cloth on my Elacs 403.  Im sure there are some swirl marks, hard to keep then new like a black car when I was 20.