If you have somebody else do it, and if that person hasn't done speakers before, there's one thing you have to make clear to the person.
Many professional refinishers strip by immersing the furniture in a large vat of chemical stripper since it's otherwise labour intensive work. Obviously you don't want this done to the speaker cabinet unless it can be taken apart, any filling removed and then properly replaced. Now I don't think that a real pro would be that stupid, but then again, some pros may not be as professional as they should be, just like any other contractor. Make sure they know that the cabinet can't be immersed and that it would have to be stripped by hand. It will add to the cost but that's the price you pay if you prefer to have somebody else do it.
Many professional refinishers strip by immersing the furniture in a large vat of chemical stripper since it's otherwise labour intensive work. Obviously you don't want this done to the speaker cabinet unless it can be taken apart, any filling removed and then properly replaced. Now I don't think that a real pro would be that stupid, but then again, some pros may not be as professional as they should be, just like any other contractor. Make sure they know that the cabinet can't be immersed and that it would have to be stripped by hand. It will add to the cost but that's the price you pay if you prefer to have somebody else do it.