Using the Lowell DX104 Recessed Backbox is easy. First, find a suitable location for your 4 - inch speaker and recess the backbox into the wall or surface. Make sure to use the knockouts and straps provided for a secure installation. Then, attach your 4 - inch speaker to the backbox, using a screw - mount grille if needed. When using the backbox, always ensure it's used with the specified Lowell assembly No. WB4 - 4A30 - T870 to maintain UL listing. To keep it in good condition, clean it regularly with a dry cloth. Avoid exposing it to excessive moisture or direct sunlight, as this could damage the steel and the acoustical treatment. If you notice any signs of damage, stop using it and contact customer support.