I have a Rotel AV receiver (RSX 1550) Chord DAC (DSC 1600E) and Audio research power amp (v70) with 5.1 speaker system. I want to drive two front speakers through the audio research power amp and rest are connected the AV receiver. Kindly request to let me know how these equipments are interconnected and the types of cable required. I have attached rear view and front view of the each devices.
If you have a guitar center near you, they stock such cables. You need to find out which pin is "hot" in the XLR and match it with the cable. As you see in the above, it says pin 2 is hot in that cable.
Note that you lose some of our amplification power because your pre-amp will not put out as much input signal as the amp requires.