Old vs New Magnepan 1.7 vs Tympani IV

Re upgrading crossovers, can anyone please advise on how to best do this on a pair of Tympani IVas?

Does this mean simply replacing the external passive crossover box with higher quality components?

Or using an active crossover and biamping?

I know I know I know I can go over to the MUG site, but would rather not spend hours somewhere else to then get pitched on $10,000 worth of garage built weirdness.

Thank you for any sensible, readily available upgrade ideas.

Oh and further to the original post, yes, the Tympani speakers are really amazing, but not only in terms of mid bass, but expansive depth and imaging.

I am enjoying them with a new DAC - an Antelope Zodiac plus - in a newly redecorated room.

Will try to post updated photos later.....

Thank you and interesting to learn more about the Magnestat website and modifications....

However, not so sure I like the looks of the larger frames, and I already have Myesound stands.

Grant was also very helpful / responsive and to my ears they made a significant improvement and reduce the worry of anyone knocking them over...

Frogman, the internal and wire mods sound well worth while, and would love to hear your friend's system.

If anywhere near NYC (or any city I might reach for business) please do tell him I will treat to dinner in exchange for a demo!