Cleaning, polishing Speaker Cabinets ?

If you have a high gloss finish over wood as mentioned above, a wood type cleaner won't be as effective as products that are used with polyester or catalyzed finishes. I have used a lot of products over the years on gloss type finishes. My new favorite is Optimum Instant Detailer & Gloss Enhancer (concentrate). Safe on finishes and removes finger prints and smears and leaves the surface slick. It doesn't contain any petroleum distillates. The type of cloth being used is very important. I only use the super soft microfiber cloths used for eyeglasses. The Auto Geek carries this product in the concentrate and is very economical.

For real wood finishes I use Woodley's crème furniture polish. It came with my Avalon Speakers.

If you go the wax route I really like the Zaino show car polish for clear coated finishes. It is not abrasive and the best part is doesn't leave any film, powder or white residue. Can be found on the Zaino website.