I also have a Paradigm & NHT setup . Studio 100v.2-main, Studio CC-Center, Studio ADP-surrounds and (2) NHT Sub 2i's. I'm using a Denon 3801 Receiver for my home theater requirements.
I've owed or demo'd many of the subwoofers that are highly regarded on this forum. Many of them have...
I just recieved my CS-Ultra and had the same problem with the hum. Ron from SVS recommended the same thing (cheater plug) and it also fixed my problem.
I didn't have a problem with my previous sub amp so I don't think it's a wiring problem. I wonder if the Samson is inducing the hum through...