Quadratic diffuser

Sound dispersion in room is important feature that significantly improves understandability of spoken word and the sound quality in room in general.

One of the well predictable solution is a Quadratic diffuser. Normally made out of wood they become bit too expensive. While its paper laser cutted version works pretty well too.
This is my first rather fancy puzzle like version which is more than 10times cheaper that its wooden counterpart. The whole body utilizes dry connections without any glue and it is indeed dismountable and reusable. Great for temporary applications such as conferences, workshops and public talks, wherever the the fluttering echo makes the speech or music blurry and tiring.

My next paper version is about 100times cheaper ;)