The FlexRange® Bass Trap Panels unifies the legacy 244 and Monster panels into one powerful family—now available in multiple thicknesses, clearly labeled by the lowest frequencies they target: 90 Hz, 70Hz, or the new 50 Hz for our most powerful low-end FlexRange absorption yet. Each model is available in Full Range or Range Limiter tuning to balance bass control with room liveliness. With our patented two-frame design, built-in air gap, and optional scatter plates under the fabric, the FlexRange® delivers professional-grade, versatile bass control you can tailor to your exact needs.