I have a dedicated theater that is 20'x30'x10' ceiling. Recently purchased the plus 2 sub, but definately want another one to add on. I was thinking the ed-a5-350 or epik castle due to craigs list and there price. Does it matter if I matched 2 diff. subs like these with my SVS? I just am looking for the best bang for the buck to go along with the svs sub. I also am a novice when it comes to this stuff, though I started doing some research. I really don't want to spend over a grand either. Would I put both subs up in the front corners, or one in the front and one in the rear? Also, if I feel uncomfortable trying to dial all this stuff in when I get my other sub, do you think I should go to some type of theater store to get a professional to get everything working properly? Or could I handle it myself? What info do I need? I just want my subs to sound the very best they can. Any help or suggestions are appreciated.

Just go with a another plus2 or the plus. If you wanted to go with another brand I suppose you could place opposite of each other. One other thing I would recommend is that you consider the SMS-1 or Behringer. I run dual plus 2s and for the price theyre selling for its worth it.