Metric Halo builds professional audio interfaces and processing software, bringing a complete recording, mixing and monitoring system into compact rackmount hardware. The company’s distinctive approach combines its ULN-R preamps and converter designs with zero-latency DSP, an integrated mixer and the expandable MHLink architecture, which lets multiple units operate as one system. Metric Halo says its recording capabilities trace back to 1997, while its mkIV platform adds driverless USB audio, Atmos-capable monitoring and field-swappable EdgeBus expansion.