Auralex ProPanels are high-quality, fabric-covered acoustic absorptive panels designed to reduce unwanted room reflections, slap and flutter echoes and provide a more pleasing and accurate listening environment. ProPanels have a fiberglass core with chemically-hardened edges and are available in a wide variety of fabric colors to appeal to the most discriminating user. B224 ProPanels are 24" x 48" x 2" , with an attractive beveled edge. 2" ProPanels have a 1.05 NRC and are most effective absorbing frequencies at 250Hz and above. All Auralex ProPanels provide professional, aesthetically-pleasing acoustic treatment in any facility. All ProPanels meet the Class A Fire Rating per ASTM E-84, making them the perfect choice for use in areas with strict fire codes. Standard wall mounting hardware is included with all panels for easy installation. Auralex Application Specialists are always available to assist you with any questions you may have regarding the specification, selection, or implementation of any ProPanel product.