A solid bracket at half the normal price. Available in black or white.
I'm aware of the monitor audio masm brackets which look like a good discrete alternative for mounting Sonos speakers which point mostly forward. However, my impression from looking at the dimensions is that those are not suitable for everyone's purposes, particularly if the speaker is mounted in the corner of the room and needs to be rotated by swivelled by quite a large angle, simply because the masm brackets are so very good at hugging it close to the wall giving less room for swivelling before the speaker touches the wall!
Wall Bracket. Bespoke design for SONOS PLAY:1 speaker
New, improved design with added functionality
Unique tilting mechanism with left or right swivel - allows you to angle your SONOS PLAY:1 speaker exactly where you want it
Can be mounted to the wall or ceiling
Precision engineered. Quick and easy to fit and adjust.