The new Reactive Load I.R. builds upon the legacy of what is already widely regarded as the industry standard for accurate speaker cabinet load replacement: the original Suhr Reactive Load. Reactive Load I.R. incorporates exciting new features to the groundbreaking design of the original Reactive Load – making it the ultimate all-in-one solution for speaker cabinet replacement As the name suggests, Reactive Load I.R. adds impulse response technology to the original Reactive Load, allowing you to quickly and easily access an array of an expertly mic’d speaker cabinets. It comes preloaded with 16 Suhr speaker cabinet impulse responses captured by Celestion. Reactive Load I.R. is an open system, so you can load 3rd party impulse responses via the USB port.