I finally got hold of the right cables for hooking up a standard mixer through line in on the Beovision 11. Through this forum actually so big thanks!
However, my Beovision 11 isn’t really quick enough to be suitable for mixing music live. I’ve set it to game node which improved latency immensely but it still isn’t good enough, as there’s a noticeable delay between touching the music and hearing the change.
Are there any other settings I can try to reduce the latency and preprocessing that goes on inside the Beovision? My previous receivers all had this problem and it could be bypassed by setting them to Straight, Pure Direct or similar, reducing processing and thereby latency.