I want to send the audio from that jack to the mixer. We have a special A/V direct box that we sometimes use for a VCR or DVD player, so it has a female mono RCA jack and a female mono 1/4" jack.

Analog outputs are stereo +4 dBu balanced on two XLR connectors, –10 dBV on two RCA jacks and a 3.5 mm stereo jack ... These outputs are switchable between line and mic level with a ground-lift ...