Reminds me of the custom built speakers that my uncle had in the mid 80's. Each speaker had 2 15" woofers, one installed vertical and one in a slope (sort of bose like, think of upfiring atmos speakers. ) On the slanting surface, along with the 15" woofer there were at least 8 mid range drivers and tweeters. Terrible design. Bass was good though. A Teac stereo amp was driving them. The stereo amp was quite nice though.
Not saying that they were comparable to the above, but just brought back memories.