I currently have my PCU connected to my receiver by line level inputs currently via a BFD. The receiver is handling the cross-over of 80Hz. I've just bought a Primare Pre30 and a Parasound A23 I'm planning to integrate these into my system either by using the Pre30's AV inputs to pass the receiver signal through, or using the unbalanced inputs of the A23 for my receiver and balanced inputs for the Pre30. I'm wondering how I can make use of my PCU in the new stereo part of my system. I have a line level output from the Pre30 that I could use (assuming it will output a signal on both balanced terminals and unbalanced at the same time) and set the crossover on the PCU to handle what my mains (JM Lab Electra 926) can't but I think that would interfere with my receiver? I also believe I have the option of using the high level inputs but I don't really understand how that works. Any help would be appreciated.