If the oder is coming from inside the speaker, open it up, and very carefully spray some brake clean on wherever the oder is coming from. It dries almost instantaneously. Just don't get any on the exterior of the cabinet or drivers. It probably won't hurt the finish, but I wouldn't tale a chance. And only use brake clean. Smell it before you put any on the speaker. If it smells like calibrator cleaner, pick a different brand. Good cleaner doesn't have a strong oder.
