On-Stage Subwoofer Adapter

The On-Stage SSA21 Subwoofer Adapter’s female M20 threading attaches to M20 speaker shafts to accommodate virtually any subwoofer on the market, utilizing both removable M20 threading and a tapered, steel-lugged lower section to accept 13/8″ cups. Whether it is a shallow M20, recessed M20, 1 3/8″ cup or 1 3/8″ cup with M20, the SSA21 will fit subwoofer.

Product Highlights

• Application: Subwoofer adapter with removable M20
• Weight Capacity: 100 lbs.
• Upper Adapter: Accepts male M20
• Lower Adapter: Tapered to 1 38″ with removable M20 to fit all subwoofers on the market
• Includes: Allen key for M20 lug removal Construction: Steel