In early 90's Olle Mirsch, Swedish designer/engineer came out with the Allegro NG8 speakers. They were in a form
of a cube with a slanted corner where the drivers - a 5" and a 1" Peerless were placed.
A little later came also the bass module that matched the top. A 6,5" Peerless driver was placed facing the floor. Both speakers came as kits, all included but for the timber. A bit tricky to build - the slant, but the result was a very nice speaker taht made you really happy and engaged while playing your favourite songs. I think we Swedes would say "stomp-friendly".
When my home started to be filled with various projects, I finally sold them.