Out of all three-dimensional shapes, the simplest is the best for a few reasons, for given applications.
If we want nearly spherical dispersion with multiple drivers, a tetrahedron with drivers centered on each face will do best with the lack of interference nodes. Mainly applicable best with coaxial or full-range drivers.
A tetrahedral enclosure also has very optimal dimensions for nulling standing waves and back waves considering that drivers on the faces point inwards at corners.
I wonder why this wonderful geometry isn’t utilized more commonly. As simple as can be.
I’ll build a pair of hopefully amazing speakers with this geometry when I have a few kiloeuros. Will be sharing the results in the future…
I have a pair of speakers on order with vibrating orbs that I am quite excited about.
Years ago someone made plasma speakers that generated sound from a plasma sphere. It didn’t catch on oddly. Perhaps someone tried to cheap out and used propane instead. Lawyers!
I once went to a “do” where a “propane organ” was being played.
It had a keyboard, gas supply, igniters at the end of every organ pipe.
Sounded quite good, looked amazing with flames shooting out of each played pipe
I remember that - the Hill Plasmatronics. I recall the biggest issue it had was need for a fair amount of helium, That, and the fact that they were quite ugly (I was going to use another word, but thought it might get flagged).
Ah, right. Of course.
I wonder if MBLs would like to be placed in rounded corners of a room. A 90 deg room corner would be messing up the omni-directionally dispersed wavefront, right, right?
My studies of the MBL Extremes has lead me to believe that the room isnt all that important to them. You dont want diffusers on the walls. You want the reflections to bounce as there is a psychoacoustic property where the ear/brain receives the early direct sound first and the reflections of the sound enhance the live sound. It is way different with direct radiating speakers.
In the first room I heard them in removing sound absorbing panels helped the sound. Especially on the front wall.
I will find out when they arrive in my room which currently gas diffusers on the front and nearer right wall.
Exactly, what I was getting at - the room IS key with omni speakers. You might want to consider a listening room that’s akin to Buckminster Fuller’s architectural designs of the past.
See:
I’m not sure if I was joking or not.
Certainly was about the Buckminster Dymaxion room.
But what you said about room interaction is correct, yet you said the MBL’s don’t find the room important. Yet you said they do.
Intuitively I think the very shape of the room is important there, not room treatment.
With direct radiating speakers, it’s more about correct distance to walls. The room is the speaker there too, but with omni speakers the room is very much the speaker.
