I have 2 subs, one on either side of my couch, set off a couple of feet out. Hidden under plants, they are also mostly invisible. One is an Adire Rava- which is a front firing 12" sealed sub and the other is a Hsu VTF-2- with a 10"downward facing driver. They are both quality subs and play without problems together. They are both dialed about halfway up in volume and the crossovers are also set the same. The sound is room filling, tight and they can't be localized. During movies they tranfer vibrations and slam to the couch which always brings suprise and joy to friends and family. Use quality subs, find the right place for them and you will be fine, as long as your room is not difficult.
