1) late 80s/early 90s- HP's IRS System- huge dynamics, concert hall scale and feel.
2) with all modesty on my sleeve... my system last month with a (non mentioned for fear of never getting another pair) mid 90s tube amp driving the MBLs. I never heard a system produce instruments that sounded so real. It was unnerving. It though lasted only two weeks- til the amp blew. I'll get it back up and running and invite over some witnesses. I never had any of my systems do THIS- the real instrument in my room thing, and like many of us I've been at this since 8 years of life!
Peter