"The bass goes lower, impact increases, space gets bigger.
layers are more obvious...."
"Midrange is liquid smooth but even more detailed and it even more connected to the upper bass and lower midrange if that is possible....it is. The highs just simply bloom effortlessly with almost no sibilance even on harsher stuff..."
that sounds like perfection.
Please can you try to post up some shots of exactly what you did. If I read correctly you stuffed the rears of the Ovals with foam, but I got too interested in the bold stuff I quoted to pay close attention.
and THANKS for those impressions. Sure interestng how much variation these can have.