Description
The OnStage SSA20M, M20 Speaker Cabinet Adapter – Black is a direct replacement for the standard pole-mount socket on top of a subwoofer. Its M20-threaded socket provides a wobble-free connection between a sub and an M20-threaded speaker pole. Its heavy-duty construction ensures sturdy support for reliable speaker placement.
Product Specifications:
On-Stage: SSA20M Specs
Type: Adapter
Mount Size: M20 (Base)
Material of Construction: Steel
Dimensions: 4.56 x 4.56 x 0.96" / 115.82 x 115.82 x 24.38 mm
Package Weight: 1 lb
Box Dimensions (LxWxH): 4.1 x 4 x 1"
Financing Options
Hassle-Free Financing Available
Get the gear you need now and pay over time. Perfect for working DJs, artists, and sound pros who need pro-grade speakers, lighting, and cases to stay competitive.
- Shop Pay & Afterpay for instant financing right at checkout
- Acima, Synchrony, Progressive & Snap lease-to-own and financing options
- Fast approvals so you buy today and pay monthly
Military & First Responder Discounts
We're proud to support those who serve. Active-duty military, veterans, and first responders qualify for a special discount on your gear. See our Military Discount details here and how to redeem.


