This is in regards to the Speakers which have walnut veneered cabinets. Many of your vintage L Models, 4300, 4400 Series, etc.

I've used such as Old English in a fix, Howards Feed&Wax and Restore a Finish, and probably decades ago have tried some paste waxes on my Jubals. I've probably tried countless others, Minwax, and others as well, forget many of the names offhand at this moment.

I note some of the liquids like Howards look great after applying, but then dull quickly, which is probably due to drying and being absorbed.

I think I've read some don't recommend Pastes.