I think you can pour sand into the Mye stands, I imagine that would do a good job of getting rid of any ringing.
It's worth noting too that both YG and Magico use aluminum enclosures. Apparently, it's easier to control the ringing than it is to damp wood. (Of course, enclosures are more demanding of the material than frames.) Jim Winey is on record as having said that metal frames would be better for Maggies, though I don't think they're a practical DIY project for most of us.
Another possibility is Corian, some dipole manufacturers say it makes a better baffle than wood and MDF.
It's worth noting too that both YG and Magico use aluminum enclosures. Apparently, it's easier to control the ringing than it is to damp wood. (Of course, enclosures are more demanding of the material than frames.) Jim Winey is on record as having said that metal frames would be better for Maggies, though I don't think they're a practical DIY project for most of us.
Another possibility is Corian, some dipole manufacturers say it makes a better baffle than wood and MDF.