I am currently running two Velodyne Optimum 12 subs and due to all the good reviews thinking about purchasing two HSU 15s or Rhythmic 15s. I like the performance of the Velodynes and want to continue to incorporate them in my system. My processor is a Marantz av7005. I realize you are supposed to keep multiple sub set ups with in the same models but I don't see why with proper set up. Should I use the Velos as mid bass units
and if so how? Or should I run them as they are now as full components? Or do I do away with them for good at a huge monetary loss? I am anxiously awaiting the arrival of my Salk sound Ht2-tl's with cc and I think with four subs this system would be hard to beat. My room dimensions are 18x12x8.