These are standards. For special order other dimensions are available.
Product is available in many nice looking colors - fabric could be in 50
colors, wooden frame typically in 8 colors. Only thing which can't be changed are black
Installation of diffusers is very easy - initially they are straight, weneed to bent them, insert into the sockets and loosen the fingers. They will find the way to mount itself stable in the socket.
Panels can be installed at any kind of the wall (wooden, concrete,
carton-gypsum board). Once they will be placed on the mounting rack - it is
possible to move them +/- 15 cm left/right.
Efficient absorbing from around 300Hz, linear till highest audio
Panels can be cleaned as any wooden furniture you can meet at the