AudioControl Maestro M9 Home Theater Processor – The M9 home theater processor is a U.S.-made solution that delivers Atmos and DTS:X, and room calibration via the Dirac Live platform. On the video side of home theater the Maestro M9 supports 4K via HDMI 2.0, and internally the M9 utilizes discrete Burr Brown DACs (digital to analog converters) to yield high levels of audio fidelity. audiocontrol.com