ROOSKIE
Major Contributor
My understanding is that Toole and others recommend using quite a bit of analysis on the encolsure and then bracing effectively rather than indulgently.Genelec and Neumann are hands down better than Revel but they're pricy. KEF is the only passive speaker that is up there with Revel, I've found them to be better than Revel in my comparisons but others prefer Revel so I'd say they are fairly close. One thing that doesn't have to do with sound quality but I like about KEF is their cabinets are very solid, that's one area I wish Revel would put a bit more of the budget into improving.
Since you can make a concrete floor shake you can also make the thickest enclosure resonate. I have seen it suggested that poorly placed bracing makes resonaces worse and making a thicker poorly placed brace worse yet.
One thing about cabinets is that is easy to make them thick and heavy and then market the build quality. It very difficult to analyse them with advanced tools and then build them accordingly.
In some ways I see the whole overbuilt cabinet thing as similar to expensiver drivers... A great big maybe it works situation.