What Do You Think . . . and How Does It Work?

Actually...

The PVC pipes used would have a minimum wall thickness that well exceeds 6mm.

DeKay

These PVC pipe speakers are all hearsay. NOBODY has done any comparisons to check if a $2 PVC pipe beats a $50k high end Wilson. 6mm is a joke. Even cheap box speakers use at least 15mm mdf. Do not be duped by this cheap PVC hogwash. 

" NOBODY has done any comparisons to check if a $2 PVC pipe beats a $50k high end Wilson."

Nobody is claiming that either.

But somebody is committing a straw man argument fallacy.

Duke

I think it’s generally agreed in the industry that a box is the worst possible shape for a loudspeaker cabinet.

The main reasons why most are built this way seems to be consumer expectations of domestic acceptability and manufacturing convenience.

The following extract is taken from diyaudioandvideo.com


What is the best shape for the box?

Internal reflections in the box combined with the vibration of the box itself can cause spikes in the frequency response of the system.

Different box shapes have different effects, with perfect cubes being the worst and spherical or egg shaped boxes being the best.

Although spheres have advantages, it is very difficult to create a spherical speaker box that is as strong as a typical rectangular box.

One good example of a spherical speaker is the Gallo Nucleus Solo above on the left which is made of rolled steel or brass.

An even better design is the sphere/tube concept by B&W shown on the right.

This design gets the benefits of a spherical design, but also adds a tapered tube at the back to eliminate all internal resonances.

Shape Variation
Cube +-5.0 db
Rectangle +-3.0 db
Cylinder +-2.0 db
Beveled Cube +-1.5 db
Beveled Rectangle +-1.5 db
Sphere +-0.5 db

https://www.diyaudioandvideo.com/Guide/BuildSpeaker/

To those who think it's ugly, put your creative hat on and build a nice wood veneered cabinet over it. The guts doesn't have to change and your can be tailored to your visual preference.