I have only one 12v trigger on AVR so ran a splitter to my XPA-100 and LPA-1. Then the trigger out to my SVS PB-2000. All is good but I'm getting a low hum now from the sub. I've already tried different configurations with no luck and have the sub on a separate outlet now. No hum without trigger. I'd really like to keep the trigger but don't want the hum or to potentially damage components. Any suggestions are truly appreciated and bare in mind I've already attempted the most common fixes found online. Just hoping someone with experience trying to sort this out may step in. Thanks in advance for your time and consideration.