PERF™ Panels employ a perforated sheet on the panel’s face underneath the fabric, allowing the panel to absorb and diffuse sound. They are an excellent choice for sidewalls in large rooms, as they improve speech intelligibility and envelop the audience in sound, increasing engagement. PERF Panels have increased low-frequency performance compared to our standard FulFill Panel, while diffusing the high frequencies. By changing the panel’s thickness, you can change the low and mid frequencies’ performance while leaving the high frequencies relatively unchanged.