Anyone recommend the most desirable type of wood when looking at diffusers? Baltic birch, pine, mdf or does it really matter as long as the design is well executed? Thank you.
Available products have different properties regarding reflection, diffusion and absorption. Material absorption is one factor, but the design itself also result in more or less "geometrical" absorption, i.e. due to the shape of the diffusing elements.
If you're looking for a diffusor, I would recommend to first look at the range and efficiency of diffusion, i.e. the geometrical design. Secondly the material property which will mainly affect the degree of absorption.