Cleaning & polishing premium-grade speakers

What do you use to polish and maintain exotic wood loudspeakers? I have a Crimson Birdseye veneer and I wonder if there is anything I can do to keep the shine as well as protect it. For the meantime, I just buff mine with a cotton shirt. Thanks!
Post removed 
I agree with Elizabeth. Coming from a wood working background, I know there are others that are going to respsond with all kinds of oils and furniture polishes. I HIGHLY advise against this. A cotton T-shirt will do just fine. Oils and polishes are likely to ruin the finish put on by the manufacturer.
Elizabeth & S7horton - thanks for the response. So, I am doing something right after all! The finish looks very shiny and has a clear coating so I am assuming that it has been applied with several layers of varnish. Just to be on the safe side I will contact the manufacturer.
I've used pure lemon oil furniture polish for years with no detrimental effects to the speakers and it keeps the wood veneer moisturized and clean.
Here we go.....I use baby diapers !!! I think they are smoother, softer and have less lint to ''wipe'' or polish my speakers with.