Speaker recommendations 10 to 30k and no beryllium

I would look at Kaiser, Wilson Benesch, and Raidho.  The best of their speakers under $30K are stand mounts but all are amazing products.  You could also look at Vivid.  

The Chiara is the best sounding stand-mount I have ever heard.  I love the Raidho tweeter (used to own the X-1s) and Wilson Benesch and Vivid have technically advanced cabinets and unique drivers.  

Why would a well behaved child damage your speakers??

Your Bryston amps are pretty good; they may sound fine on Maggies.

Cheers!

Give Peter a call at PBN speakers he builds some good sounding speakers. Will work with you and your needs.

with the top end of your budget i’d work hard to find a dealer to get to that 30k on a pair of Wilson DAW’s. You’ll be making a mistake to not consider Wilson given your budget. Yvette’s extremely good as well as i mentioned earlier.