Just a quick update - I managed to find an output cable XLR to RCA that works perfectly. Just a cheapo from BlueJean Cables.The way it's wired is pin 1 to ground, pin 2 to signal, pin 3 floating(unconnected). Being pretty ignorant about electrical circuits and how and why they work, I did a lot of reading and also came across an illustrated chart that explained the many ways to wire and convert patch cables from one format to another.The adapters and cables I tried previously used both pin 1 and 3 for ground which is how the input side is usually wired when going from RCA to XLR and often works for the output side but not always. Apologies for my other post where I said pin1 was for signal,too late to edit.So now I can give the API unit a try and see how that goes. tlcocks gave me some interesting suggestions of other eqs to check out that are very well reviewed and would be fun to play with, but I'm sticking with simplicity for now.I just want to correct a tiny bit with some overlap for smoothing.