SFA-24-3000 • Spine Frame Adapter

Polar Focus Spine Frame Adapter controls line array tilt. We offer a full line of audio rigging equipment for professional loudspeakers and line arrays.


Polar Focus Spine Frame Adapter is designed for installation or portable use. The SFA 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.

The SFA-24-3000 will accept standard anchor shackles from 5/8″ to 3/4″, 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″ 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.

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. This product is compatible with any Polar Focus product with a part code beginning with ‘PY3’, allowing simple system design. We offer a full line of structural attachment accessories for roofs, walls, poles, crank towers, lighting truss and motor adapters.

Customers report that the time to safely suspend and accurately aim a typical three speaker system in a church or theater can be reduced from a full day for two workers, to as little as 45 minutes for two workers. Aiming adjustments at system tuning time can require as little as 15 seconds per speaker. Powder coated black, white, custom color, or galvanized.

Conforming to Polar Focus standards, this product has a 10:1 design factor.

Pro audio rigging design, roof attachment, supplemental structure, sales, support and PE stamped drawings for all 50 US states and Canada provided by Polar Focus. Call us today for more information at (413) 586-4444.

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