the box pro Achat 110M U-Bracket

Fits perfectly, works really well.

Incredibly steady; have complete trust in the bracket can hold the speakers. Comes with all the nuts and bolts too which is nice. Shame its on an allen key as these are often hard to come by; and 2 of my allen key bolts where damaged so had to swap them out from my stock.

The only negative I have, is that they are hard to lock the speakers off, there needs to be some tilt mechanism installed so once I have set an angle the speakers stay there. I often find myself re adjusting despite doing up the allen keys as tight as possible. The shape of the frame also makes it difficult to get a spanner in to attach a nut.

All round great product and good value for money.