Nice setup, I wish I could have a space in the attic.
Yes the JBL Everest is a very nice pair of speaker to have which I have a pair and a mad collection of vintage JBL Hartsfield,JBL Paragon and Klipschorn. Been driven by vintage Mcintosh and Marantz.
You could listen as well to a pair of Klipschorn as I find them value for money the dynamics are much better than the JBL.
Joseph Lazaro
Singapore.