Hofa Absorber Eco grey, acoustic panel, absorbs mid and high frequencies in the room and therefore reduces the reverb time, Material: Basotect covered with cloth, high efficiency: at 200 Hz about 50% of absorption, complete absorption above 500 Hz, for professional and better working conditions in recording and control rooms as well as for an audiophile Hi-Fi listening experience, combinable with HOFA Frame for flexible room acoustics, Dimensions: 500 x 500 x 110 mm, Weight: approx. 0,42 kg, color: grey