Speakers Stands for the PSB Synchrony One B (bookshelfs)

I have PSB Synchrony One B bookshelf speaker sitting on the Sound Anchor's (25") stands and in my sitting
position my ears are in the level with the mid/bass cones.
Should I go with the stands 26" or 27" tall since the mid/bass is on the top and the tweeter on the bottom. I am just concern about the bass quality if I place the speakers higher.
Thank you in advance on your opinions.