Most “disappeared” speakers.

My most wide soundstage speakers were the old Bose 901s. Distance from wall and more importantly wall material are critical however. I had an apartment with brick wall (3 deep) separation and the sound was magnificent. Moved to a house with drywall and I couldn't sell them fast enough. My message: Room is everything. Good luck!

Ohm 5000; lots of power behind them; don’t be afraid of adding a sub.

Oh and Andy is right....on both counts.  The room is everything.

When you get a chance try this. Blind fold yourself and have someone guide you towards a dynamic speaker. You will know right away when you are right on top of it. Do the same for any full range ESL and you will walk right into the speaker. 

I bought a pair of Vienna Acoustic Beethovens, rosewood finish, store demos from tweeter around 2004 and 10 years later I decided to upgrade my speakers and sold the VA's first were the R107/2, then the F52's then the salon 1's then the VA strauss then the salon 2's then the usher be-20 dmd's...and finally I went back to a used pair of VA Beethoven's! All the speakers did some things better but at the end of my search for the holy grail of loudspeakers I found out I was really lucky when I stumbled onto the beethovens.