I am in the middle of doing a 60 day comparison of Dyn Heritage Specials with my Dyn Special 40s.I own both so not doing a dealer audition.
My initial observation: DHSs are an "audiophile speaker" while the S40s are a "music lovers speaker".
S40's replace Focus 140s in the kitchen/fam room driven by Cambridge CXA-81.
DHS in my basement office (9'x15') driven by: Belles Aria Sig/Denafrips Pontus II/Bluesound Node and Teddy Pardo LPs