The Hall Research EMX-AMP is a 4K HDMI audio extractor with EDID management and a built-in 50-watt audio amplifier for direct connection of 8-ohm speakers. The device also provides line-level stereo aux audio input and allows audio mixing of HDMI audio with the aux input. Volume can be controlled from the front panel, RS-232, or an external digital rotary pot (encoder) that can be mounted on a wall-plate. A second, independent RS-232 output port can be used to control other devices such as a video projector. Using the primary RS-232 input, the user can send power on/off commands to the display through the secondary RS-232 port. The USB port can be used to configure EDID and update the firmware.
