Vonyx MPS-B55S Square Base Plate – Heavy-Duty Speaker Stand Adapter
The Vonyx MPS-B55S is a square base plate designed for professional loudspeaker mounting. It provides a stable, level foundation for speakers on flat surfaces, converting standard stand hardware into a secure floor-standing setup.
The square geometry and generous 59 cm span give the plate a low centre of gravity, reducing the risk of tipping on uneven floors. The M20 thread size is a standard in professional audio, making the plate compatible with a wide range of speaker stands and brackets without adapters.
Ideal for...
Sound engineers and live-event technicians who need a quick, stable speaker base on hard floors — particularly in venues where tripod stands alone lack sufficient stability or where a low-profile platform is required for line-array or floor-monitor setups.
Application of Vonyx MPS-B55S
Place the plate on a flat, level surface
Insert speaker stand legs or brackets into the M20 threaded inserts
Secure the speaker and verify stability before operation
Vonyx is a professional audio brand specialising in loudspeaker accessories and rigging hardware. The MPS-B55S square base plate exemplifies the brand's focus on practical, heavy-duty mounting solutions for live and studio applications. Products are built to withstand the demands of frequent transport and repeated setup.
It is a square base plate that provides a stable foundation for speakers on flat surfaces, using 3x M20 threaded inserts for direct stand or bracket attachment.
The plate measures 59 cm square and weighs 7.00 kg. The M20 threaded inserts are rated for standard professional speaker weights; consult the manufacturer for maximum load per insert.
The plate is constructed from powder-coated steel, providing durability and resistance to scratches during transport and repeated setup.
One square base plate with 3x M20 threaded inserts. No additional hardware is required for standard speaker stand connection.
The product comes with a 24-month manufacturer warranty covering material and manufacturing defects.
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