Considering Sonus Faber Liuto, Revel F52, JM labs

Considering Sonus Faber Liuto, Revel F52, JM labs Electra 1028 be, PSB Synchrony One and Paradigm S8 as a possible replacement for PSB Stratus Gold. I am very satisfied with the overall sound of the Golds and really have no complaints in any particular area, but they are 15 years old and if I can get a little more clarity and oomph out of a newer speaker, I would make the change.

I want to be able to keep the warmth of the Golds, but maybe add a little quickness. The above candidates seem to offer what I am looking for, but auditioning them all is a problem. So, if you have any experience with any I'd appreciate an honest opinion as to whether they would be an upgrade.