Yeah as
@mbenigni says, use a Y cable to convert the two outputs of the VP4 from TS into a single TRS plug. Put that in the Return 1/2 jack on the QCM. Add the appropriate block to the grid:
- Return 1/2 for juat bringing in the stereo signal from VP4
- FX Loop 1/2 if you are using the Send 1/2 to send out to VP4 and want it to come right back into the QCM kinda like an amp’s FX loop does it