I have a 3200.1d Orion on the input side there's 4 rca jacks (2rca input 2rca output) across there's 2rca that says bridged. Years ago,The guy that hooked up 2 12" kickers comp the way you did here... I can't recall how he had the subs hooked up.... My question.... I'm going to hook up this same amp to 1 15" 1000w rms dvc... Should I go with the bridge rca or no? Hope I explained it well enough.. any advice is appreciated