STEREO FX LOOP QUESTION

  • i want to run a few external stereo pedals into the stereo fx loop
    i assign the x module to stereo effects loop and run a cable out to the pedal and come back stereo quarter to xor into the return xlr
    it seemed to somewhat work with a tremolo if i cut the mix down to 50% and ducking to 0
    but the delay just gets the right side even though I'm coming back into the amp stereo quarter inch jacks into an xlr
    how can i get it simple enough to run some stereo pedals and maybe a volume pedal on my pedal board and get the stereo sounds from the pedals
    is it a certain kind of y cable to xlr or is there another way around this