Quote Originally Posted by Bksabath View Post
I was thinking of 50 mm thick slabs of marble to keep my F5 look and a sturdy brace hi up 3/4 way on the sides
The fitted feet are a bit wobbly IMO
Yes, the fitted feet are not ideal. However, on the plinths I have made, a simple cross bar behind the speakers and bolted to the plinth applies pressure to the t-bar and forms a secure bond. The plinth design also means that you can mount each monoblock directly under the speakers (size permitting).