The only speakers I have ever heard that don't get too much bass bloom close to a wall are Anthony Gallo A'Divas. I've tried acoustically sealed as well as front ported, and they all had too much bass reinforcement. If you are going to put them in the shelves, or very close to the wall...audition some Gallo A'Divas or Reference Stradas.
Hope this helps,
Mot
Hope this helps,
Mot