The Bose® F1 Model 812 Passive Flexible Array Loudspeaker is a small-format full range sound reinforcement loudspeaker with a flexible array that lets you control its vertical coverage pattern. Simply push or pull the flexible array into position to create “Straight,” “C”, “J”, or “Reverse-J” coverage patterns, letting you tailor the loudspeaker’s vertical coverage to a variety of environments and mounting locations. Engineered with a flexible array of eight high-output mid/high drivers, a high-powered 12-inch woofer, 47 Hz low frequency range and a lower crossover point, the loudspeaker delivers high SPL performance while maintaining vocal and midrange clarity. The F1 Model 812 Passive is intended for use in small to medium sized indoor installations and can also be used in portable applications