I went to the Velodyne site to pick out a sub for my new system....and because of the room size....it sprang for the high cost subs....like 2k or so. I was planning on spending 400 bucks on a DLS-4000 but the room size may call for something bigga. The room is 23x22x8 which is over 4000cuft. The listening area is smaller.....but it is open to the dining area. Here is the planned system: 65" Mitsu model 65413 already installed 701 Onkyo AV...and Polk for speakers 2 x Rti8 for front, Csi3 center, 2 Rti4 rear for a 5.1 setup So now I need a reasonable sub for this setup. Would a under 500 buck Velodyne work ok? Or should I save up for a 1100 buck SVS?