(Later addition: The linoleum triagle pyramid speaker may have a less flat frequency response than the linoleum cube Auratone 5C type speaker. More experiments needed.)
Linoleum made speaker standing with triangular pyramid base on table.
Speaker placed in the middle of table so that many people can hear similar sound around the table.
Having said that even with just one drive unit loudspeaker sounds very nice from back sides. Less of course high frequency content but there is still a surprising high about of it. Bass is great. Mid too.
One of the reasons bass is great too is the possibly the fact that linoleum sides vibrate like a passive woofer. The triagular pyramid shape helps greatly in making sides vibrate only with deep bass? For some reason very low mid content comes out of linoleum sides from tetrahedron, lack or reduced standing wave resonance from non parallel walls?
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