Have Maggie 1.6s, looking to switch it up.

I have had my 1.6's for little bit now and can't help but wonder what a decent conventional speaker would sound like in my set up. Prior to the Maggies I had inexpensive bookshelf speakers, it has been years since I have heard a decent full range "box" speaker. Looking for recommendations for a good size floor stander in the $1000-$1500 range used. I have considered Gallos and Zu among others so far.