I was using the Omnimount on my 9.1lb NHT Superone 2.1 and the speaker sagged terribly. No matter how much I put it on, it didn't stay at the level I wanted. To be honest, it's very difficult to wall mount bookshelves that weigh over 9 pounds. You'd better get a smaller surround sound like the NHT Superzero 2.1. You don't need the full bandwidth for surround sound. Anyway, I took it off and tried the Vantage Point and they are way better. It stays where I want it and on top of that you can also easily rotate the speaker if you feel like making small adjustments. Omnimount is completely locked. The Omnimount is solid though and if you're using a small bookshelf it should be fine, it's just that with my small bookshelf the larger Vantage was better.
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