DAC-80 is designed to remove hum and buzz created by ground loops.
Normal voltage differences in the system grounding points between different pieces of equipment cause small AC power currents to flow in the shield of audio cables.
Capacitance between a power transformer's primary and secondary windings introduce signals to the circuit ground which will also create small current flows in the cable shield.
Either of these problems will create hum in audio signals. DAC-80 breaks the interequipment ground path and greatly increases the rejection in the input circuits while remaining transparent to the audio signal.
Datavideo's DAC-75T is designed to convert video signals from VGA, HDMI, SDI to HDMI or SDI. With touchscreen control, it's a great ally for venues, conference teams and AV rental teams that need to be ready for whatever the presenter needs to project. DAC-75T makes childplay of connecting your source to a screen or projector. The DAC-75T does upscaling, downscaling and standards conversion for any HDMI, VGA or SDI device to any HDMI or SDI screen or projector. RCA inputs allow audio to be embedded to the output of the video signal for recording purposes.