The Retro 5 speaker uses the Posh SP-5 driver mounted into a retrofit mounting baffle/grille. The baffle/grille assembly mounts to the wall or ceiling with dogleg fasteners. The Retro 5 delivers up to 100 watts of power, and is available in either a round or square grille, suitable for in-wall or in-ceiling installations. The Retro 5 can also be ordered with a Posh T-15 extended-bandwidth transformer for 70/100 volt applications.