Best way to clean glossy finish on speakers?

@emergingsoul 

I make furniture and cabinetry. What you are probably dealing with is a polyester lacquer, the same type used on Pianos. First off, it depends how deep the "scratches" are. Scratches you can not feel with the edge of your fingernail are called swirl marks. They are very easy to remove. Scratches you can feel with your fingernail are a bit harder but can be done. Then there are gouges that make their way into the underlying substrate, in this case probably wood. These will require an expert at finish repair. Cleaning and swirl removal can be done producing a mirror shine with Menzerna 3500 and a microfiber polishing cloth. Squeeze a little 3500 on the speaker and rub briskly in straight lines following the wood grain doing a section at a time then wipe off with a clean microfiber cloth. You could also use a random orbital polisher and a foam polishing pad. In my experience Menzerna is better than any of the American companies except maybe 3M.  You can use the 3500 every day for the rest of your life and you will never go through the finish. 

Taking  deeper scratches out is a more involved process taking several different compounds and a machine polisher. 

After using the 3500 you do not have to put anything else on the speaker. You will just worsen the shine. I get Menzerna products from AutoGeeks online. 

Menzerna is a top shelf brand but once you add a machine to the mix you need to be careful if you do not have prior experience. Lot's of tutorials on YouTube though.

Autogeek dot net is awesome - they have everything you could possibly need - I've been buying from them for 20 years. 

I get my wife to all the dusting/cleaning. Highly recommend that.

I guess she must be more than happy doing so. Make sure though whatever the gadget she is using won’t microscopically scratch the surface please. Someone in this thread even worries about the cover fabric "rubs" the surface more so than abrasive, intrusive cleaning using all of the solutions recommended here.

I use Zaino products on my black gloss Focal Sopra 2's.  In particular I use their grand finale spray seal to remove dust on a regular basis with a soft cotton cloth.  I use their all-in-one about once a year to give the finish a nice coat of protection, these products make the surface a very slick.  I only handle the speakers with white cotton gloves if I need to move them.  So far I have only had one scuff mark on one of them, which came off with Zaino fusion polish.  They make good stuff, I have been using Zaino on my automobiles for probably 15 plus years.  Right now I am looking into a ceramic product, the only problem is there are so many out there it is hard to weed out all of the junk, I have tried a couple that were just that.