The Model SC-12BT is a 12 input, 3 output HD Scaler Switch. It accommodates 4 HDMI, 4 VGA, 2 CV, 1 S-Video and 1 YPbPr inputs and three selectable outputs VGA, HDMI and HDBaseT. Inputs are selected by front panel push-buttons, RS-232 or IP commands. The selected source is scaled to a fixed user-settable resolution and simultaneously output as: VGA, HDMI, and HDBaseT (extension to 70m / 230 ft. on a single UTP). The HDMI audio is extracted; VGA and AV inputs have their own separate audio inputs. There are two auxiliary audio inputs (balanced mic and stereo line-level). Audio controls are on the front panel. The overall audio is embedded in the HDMI and HDBaseT outputs and is available on RCA jacks. The unit includes a 20 watt audio amplifier for direct connection to 4 or 8 Ω speakers.