Most cost-effective BASS Trap on the market. Can be used as full on bass absorber when stranding the corner of the room or as a regular bass panel on the wall or ceiling. Can be broadband or with a scatter plate in front of it to reflect/scatter back a portion of high frequencies (2000Hz and above). Recommended for: Control rooms, home or professional studios, recording rooms, mastering studios, live music halls... Best for absorbing: LOW frequencies Specifications per panel: Dimensions: 104x64x22cm Core: Ecose rock mineral wool - density: 30kg/m3 - gas flow resistivity: 5000 Pa*s/m² - fire retardant (HRN EN 13501-1): A1 Fabric: Premium feel acoustically transparent fabric - Textum Kabal (295 g/m2) Weight: 16kg Frame: sturdy wooden frame with built-in 2cm air gap in the back for more bass absorption Classification sound absorption (EN ISO 11654:1997): A Noise Reduction Coefficient (ASTM C423:1989): 1,05 Hanging options: 1. None / selfstanding 2. Wall mount: sawtooth hangers (write in the comments of the order if needed) *Due to various wall construction types, wall anchors and screws are not included. *Bass absorbers are most commonly placed in corners, and they can be stacked vertically without a mounting kit, on walls they need to be mounted with sawtooth hangers.