Those are great looking speaker mounts. It says -" Currently unavailable.We don't know when or if this item will be back in stock. "You have another source ? Those look very useful.
Must be the camera angle!
Left surround speaker mounted with new system using magnets and having curtain go behind the speaker. Right surround is how I used to have them mounted with curtain stopping on each side of the speaker. The current surrounds are JBL 8340's which are 19"W x 21.5" H x 12"D and weigh 50lbs. They are large surrounds. The Volt-10's will be 14"W x 14"H x 7"D. The Volt-10's will also be half the weight. Both speakers use 10" pro woofers and compression drivers.