Bought a pair of Davantis now can figure out what stands will work. Never had bookshelf speakers before. How much of the bottom of the speaker should be supported? They aren’t diminutive speakers. A minimum of 6”x9” platform for the speaker to sit directly on or what? They are 13”x9-3/4” for the bottom dimensions. What has worked for others with the Davantis or similar sized speakers?