Designed for installation or portable use, the Spine Frame Adapter™ provides infinitely adjustable tilt control to a line array with the common front to back spine support frame configuration. When combined with a Zbeam product, the Spine Frame Adapter allows for precise tilt control of pan and tilt under full load. [break] The SFA-24-3000 will accept standard anchor shackles from 5/8 inch to 3/4 inch, allowing it to be attached to almost any common spine type line array frame. Line array tilt is adjustable under full load with a 3/4 inch wrench, and can be locked down. For permanent installations, use blue thread lock under the locking nuts. Pan angle of the line array is controlled and adjusted by components not included on the SFA-24-3000. [break] This product is designed as part of the patented XY Grid family of parts, and can only be used as supported by matching components within the family. Consult with a Polar Focus product specialist for assistance. [break] Conforming to Polar Focus standards, this product has a 10:1 design factor. [break] Pro audio rigging design, roof attachment, supplemental structure, sales, support and PE stamped drawings in any US State provided by Polar Focus. Call us today for more information at (413) 586-4444.