Universal Subwoofer Adapter for Secure M20 Mounting

The On-Stage Subwoofer Adapter is a versatile steel adapter designed to fit a wide range of subwoofers on the market, featuring a removable M20 thread for easy installation and a tapered 1 3/8″ cup for secure mounting. With its rugged construction and adaptable design, this subwoofer adapter is perfect for a variety of applications, providing a stable and secure connection for your subwoofer.