FBT MITUS 212FS Processed Flyable Passive Subwoofer - 12"The FBT MITUS 212FS is a 2 x 12" compact and flyable subwoofer which can extend the low frequencies of the MITUS 206L when combined together in ground stacked or flying arrays. The modularity of the FBT MITUS 212FS makes it extremely flexible for a wide range of applications, from a small system to an elaborate line array system consisting of up to 12 MITUS 206L cabinets along with multiple FBT MITUS 212FS subs for large concert events. The FBT MITUS