As a forty year veteran of home audio, imo large horns are the only way to achieve realistic fidelity in such a space. Add at least 3 subwoofers as the space will support real low frequencies with (probably) minimal modal issues.
JBL K2, or, better, Everest are elegant real world solutions & would work nicely w your electronics, as would large Tannoys.Ignore anything with a dome tweeter, cannot drive the space.
JBL K2, or, better, Everest are elegant real world solutions & would work nicely w your electronics, as would large Tannoys.Ignore anything with a dome tweeter, cannot drive the space.