Transducer in omnidirectional Arrangement - Polarity-Rules wanted

[tiefbassuebertr]

Transducer in omnidirectional arrangement - polarity-rules and theoretic background wanted

Here some examples for loudspeakers, where the design is in an omnidirectional arrangement:

1) Subwoofer

Infinite Baffle Subwoofer
Page Title

2) Full-range

a. Calcube
Get ready to rock! (Full Range)
Ambiance Acoustics Super Cubes Review-AVRev.com
Ambiance Acoustics Super Cubes Review-AVRev.com
b. Bose 901 series
901 Direct/Reflecting speaker system | Bose
Bose 901 bei BestVintageAudio in Koblenz
Bose 901 Speaker Restoration SOLID-orange
Bose 901 - Bose
c. Dynacord Mosquito
http://www.el-me-se.de/old/pdf_files/Mosquito-S.pdf
http://www.ebay.ch/itm/DYNACORD-MOSQ...-/120739014758
Bild 4 aus Studio, Recording (Equipment): Echolette M40 mit 2 Dynacord Mosquito Boxen u. Hochständer.
Dynacord mosquito s 220/150w 4 kpl, Kitarat, bassot ja vahvistimet, Musiikki ja soittimet, Helsinki, Tori.fi

I am looking arround to the right usual english terms/keywords for this kind of design, because I want to find the associated papers about the theoretical background and the rules of polarity in case of example mentioned about 1) and 2)a.

Thank you very much for advices

[ctef]

And one more from me.
The Hungarian BEAG.

P.S. In above links 3 and 4 for Bose 901's there are some inaccurate mixed pictures about EQs and wiring diagrams of series 1, 2 and the latest!

[el`Ol]

There is no theoretical basis for the Bose 901, besides the company's price politics and marketing an additional reason to hate it for most people interested in audio, DIYers and others. Me and others experienced that in discussions about "flooders", too.
I once did an experiment with single driver speakers directed towards the wall and noticed that a slight rotation inwards or outwards in about the angle of the 901 gave much better imaging than directing it 90° to the wall. I am quite sure even Amar Bose doesn't know why this is the case.

[ctef]

May be the sound is mystery, but not always
For most things there is some physical-science answer.
In this case is probably this:
As we know, the sound waves from the most of loudspeakers are narrow directed, especially the high-mids and highs. Imagine a mirror and a beam. Situation with the turned 90* speaker is more or less the same. It makes a "shadow" for a part of sound-waves.