Speaker Polish?

For cleaning, Murphy's Oil Soap is good, and for polishing the above mentioned Lemon Oil or Orange oil work well. Be careful with the Linseed Oil, because if you get the wrong kind, it will be tacky. Also, go easy with the oil, because most speakers are veneered, and too much oil can soak in, and make the veneer lift off.

Also, the above comment about making sure what type of finish is on the speakers is very important. If you have a clear lacquer type finish, use wax.

Paulwp, no need to have nightmares. I am only cautioning against going crazy with the oil. Some oil on a cloth, which is enough to bring back the surface luster, is all you need. Additional oil is unnecessary, and could cause the veneer problem. Reasonable sense should prevail. Normal use of oil on the finish from time to time will not harm your veneers. Some people just think that if some oil is good, then alot of oil is even better. This is why I made the cautionary statement.

Paul, assuming the speakers have a natural finish, and not lacquer, I would definitely give them some oil, and do it lightly on a weekly basis, until they keep the "glow" on the surface. This makes it unlikely that you will give them too much oil in one application, which could cause soaking. It may help with the fading also, but may not restore the color totally. A little appropriate color stain mixed in with the oil may help to blend the color of the finish back to normal.