Absorber made from solid Oak wood with velvet coated highest quality polyester foam. Its main purpose is to absorb mid to high frequencies, but beside that the 6 strip also spreads high frquencies on a 1D diffusor principle. With combining the mounting direction, you will get a multi direction sound spreading.
Velve coated USAP* foam, Solid Oak wood
Natural Oak, Oak in Ebony, Oak in Mahagony