The Retro 8 Coax is high performance 8" coaxial retrofit speaker system. 70/100 volt input with 8-ohm bypass. Fully assembled system complete with C-ring hardware for mounting in sheetrock and support rails for drop-tile ceiling installation included. 70 volt input taps of 7.5, 15, 30 and 60 watts. The same sweet sounding silk dome pivoting tweeter used in the Solution Series models and rock solid high quality construction makes this new model a great addition to the Posh line.