Tried 2 pairs of speakers for 2 channel?

In the mid 1970's I used what was the a very popular speaker
set-up..called "double Advents". You set one large Advent
on top of the other..with the top one upsidedown...ie:
tweeters together. This was the beginning of the high-end
journey for many of us. I have not heard or seen much about
doubles since...but many current high-end cone speakers
systems...(Wilson and many more) appear to be doubles within
one model/design.

The speakers mentioned above, Duntech, Montana..etc. have
the woofers farther apart..and the tweeter(s) centered.
The lower the freq./Hz./CPS the more omni-directional, and
the longer the wavelength. The distance the woofers are
apart has a greater chance of cancelling or re-inforcing
the range they cover..on the other hand, the higher the
freq. the more directional or cardioid the pattern of
radiation is. Placing the speakers side-by-side or one
in front of the other has a less likely chance of being of
any merit.