It is the Arc Studio, Standalone Frequency Response Correction for Stereo Monitoring Systems Room correction – independent of DAW or speakers Simple creation of correction profiles Six preset curves for fine-tuning the room sound Frequency response and phase correction is saved directly on the ARC Studio processor after measurement Zero latency monitoring in any studio setup High-quality AD/DA conversion with 120 dB dynamic range Adjustable upper and lower frequency correction limits Indeed the Ur 44 ....this is a great interface......