forgelab3D
Sonos Era 300 Adapter for Flexson P5-PFS Speaker Stands
Sonos Era 300 Adapter for Flexson P5-PFS Speaker Stands
Couldn't load pickup availability
This adapter set is designed specifically to allow the Sonos Era 300 speaker to be securely mounted onto compatible Flexson P5-PFS speaker stands. It provides a clean, stable solution for users who want to reuse existing Flexson stands while ensuring correct fit, alignment, and support for the Era 300.
The Sonos Era 300 has a unique shape and mounting requirement that differs from earlier Sonos models. As a result, speaker stands designed for previous Sonos speakers are not directly compatible, which can prevent secure mounting and correct speaker positioning.
This adapter set bridges that gap by providing a precise mechanical interface between the Sonos Era 300 and compatible Flexson P5-PFS stands. It allows the speaker to be mounted securely without modifying the speaker or the stand, offering a non-invasive and reversible upgrade solution.
The adapters are designed specifically for the Sonos Era 300, with dimensions and mounting points matched to the speaker’s footprint and the Flexson P5-PFS mounting system. A model-specific design ensures secure support, correct alignment, and a clean appearance once installed.
Speaker stands and room setups can vary. This adapter set is intended only for use with compatible Flexson P5-PFS stands. The goal is to enable safe and stable mounting while preserving the intended placement and aesthetics of the speaker.
Manufactured using durable, high-quality plastic with a matte finish, the adapters are intended for indoor home use. Matte black and matte white finish options are available to match different speakers and room environments.
What you receive
Two Sonos Era 300 adapters
Mounting hardware required for installation onto Flexson P5-PFS stands
What is not included
Sonos Era 300 speaker
Flexson P5-PFS speaker stand
Compatibility
Designed for use with the Sonos Era 300 speaker and Flexson P5-PFS speaker stands only.
Customer responsibility notice
Customers are responsible for checking compatibility with their specific Flexson stand model, as well as ensuring suitability for their setup before ordering. If you are unsure whether this adapter set is compatible with your stand, please contact us before purchasing and we will be happy to help.
Designed and manufactured in the UK by ForgeLab3D, focusing on precision-made accessories for specific audio and home technology products.
- Precision Fit
- 30-Day Returns
- Ships Worldwide
Share

How customers fixed their setup
A customer’s TV unit had a raised side panel that prevented proper soundbar placement. Our custom riser stands lifted and centred the Arc without wall mounting.
Sonos-related Customer Reviews
Read All Customer Reviews-
Jorge (5 Jan 2026)
★★★★★
Had a problem, these stand solved it perfectly. I was able to center my soundbar in an entertainment unit that had a raised side.
-
Column
★★★★★
Excellent customer service. Went back and forth a few times on dimensions and seller was very patient. Item quality is excellent. The width of 40mm lets me run the power, Ethernet and HDMI cables down the back so they are less visible. Fast turnaround from ordering to receiving.
-
Jim (17 Jul 2025)
★★★★★
This is a high quality stand that compliments the overall aesthetic of the Sonos Arc Ultra soundbar - the fit and finish are excellent. I greatly appreciate the solid communication and final resolution. Thanks again for a solid product and experience!