REL Stadium and Rowland 201's setup -HELP

I've owned a REL Stadium III that I've had for a couple of years. After intially setup, the sub has performed flawlessly. I'm thinking of upgrading to a pair of Jeff Rowland 201's that I have on home demo and I'm having difficultly integrating them with the REL. None of Sumiko's fixes have worked up to this point. I can't get any sound to come from the REL. I believe that I'm getting ground from my HT processor that is connected via RCA. I'd like to run the Rowlands via high pass through the speakers output. Anyone out there using 201's with a REL sub?