Kosst I guess I should've said you need big drivers and efficiency. If you have both of those attributes it will deliver in spades.
If you don't have the size you need much more than one driver and then generally you lose out in the imaging, staging and coherency department.
I say generally because I'm sure there are exceptions to the rule. I just haven't heard them.
If I were the OP I would look at Tannoy's or Altec 604 Based speakers.
Or a pair of altec model 19, voice of the theatres or Valencias.
In fact if you look at vintage stuff those attributes are very common. It's only when they started designing speakers with solid-state in mind that we lost our way. Efficiency was down, they started trying to make smaller boxes with wife acceptance factor in mind and then we ended up with more polite sounding speakers.
You can't cheat physics...
