Have you made sure the mounting screws are tight on both the tweeters and woofers? Are the Arro's fillable? Some Totem speakers can be filled with lead shot. If they are capable of being filled, use #9 lead shot; you can get it at the local gun shop. There could be a wire or some acoustic fill touching the back of the woofer cone. The Arros are a great little speaker. The only shortcoming is they only play so loud; expected from such a small woofer.
Good luck,
Good luck,