Well I have my proof, I could play you two versions of the Cube1 speaker one with a *correct* conventional crossover with some of the physical work as in cabinet design and material, and one with the extra mechanical work on the cone and cabinet and just a tweeter protection cap, and it is a large musical difference.

The only problem is I would have to build the first one again as it no longer exists. But seeing as I have proved it to myself (who is the only person that really matters to me) I can't be buggered to bother.

So as far as I am concerned the lateral thought has been applied, as it has also been by Paul Hynes who came up with even more elegant and lateral solution that he talked about in another thread. The difference is mine is potentially commercial his is a real classic over the top nerd-dom jobby.