I have the DeCapo-i and I use a stand that is 24". However, I have found that the speaker is better at about 26" and, to achieve this height, I have put my stands/speakers on 2" thick would blocks. This seems to work just fine. I believe the Reference 3A manufacturer, Divergent Tech, recommends a height of 26 to 28 inches. Of course, the height of your speaker stand will influenced by the height of your listening chair.
