John,
I have a very small dedicated room for the system... appx 10X11 with a vault ceiling that extends to 15'. I doubt any speaker could reproduce bass in this room. The Hales I had previously were very good for their time, but the Guarneri's are in a different league.
I have heard many speakers in the last 25 years since I started in this hobby and the G's are my current reference. Incredible ability to portray lifelike imaging ( given room size of course) great depth and tremendous high freq air. I play small ensemble, solo string instruments and blues. I also like voice and intimate recordings with great warmth. Nothing I have ever heard is better than the G's in this regard. When I move to a larger room ( If I do) then I might use a sub. It will be a major issue to get one that will work with the G's though.