My name is Olga Oreshyna
It is first time I posted here.
And I would like
to introduce you my artworks what also nicely works as sound diffusers. Please take a look
and tell me what do you think about this.
Again - this is not mathematically QRD,
this is what I feel about wood.
This is my page for this producthttp://olga66.wordpress.com/acoustic-panels/