Thats not a very good system especially considering the amount of money that has been spent on it. What you have there is just a pair of boxes with drivers in 'em. What he should have done is bought some illuminators or accutons and mounted them in a concrete block. What is more solid, a speaker box made of mdf or any other material that these high end companies use, or a solid BLOCK OF CONCRETE?
and can you imagine the amount of money he would have saved by doing that?? The only reason for a speaker cabinet is so that the speaker companies can package them and ship them all over the world. Its just for their convenience rather than for sound quality. If you want state of the art, you need CUSTOM BUILT SPEAKERS CUSTOM TUNED BY HAND TO YOUR EARS AND YOUR EARS ONLY!!! not mass produced junk like
evolution acoustics which are just horribly overpriced boxes that appeal to people who want a nice looking shiny glossy box in their homes.
I dont see any measurements on their website to justify the horrific prices they charge. Not a single graph in sight.