A:AnswerI have a 2500 cubic inch room and use one of these subs and it does fine. It fills the room adequately with bass. My den is 5000 cubic inches and I prefer to use an svs ultra 16" subwoofer. It rumbles the entire den and the rooms next to it with extreme prejudice. Price for one svs ultra $2500. If you can get a great deal buy four subs. It just depends on how much you are willing to spend.
A:AnswerThis sub has a built in amp and its own power supply. Just run the RCA cable to the input on the back of the sub and plug it into the receiver output
A:AnswerIf you are using 2 subwoofers you would almost certainly want the right and left subwoofers to coraspond to the right and left channels of the audio system. You may only have 1 sub out, but your amp probably has a right and left preout. In most cases the sub out is limited to lower frequencies which makes sense for a subwoofer and the preouts will deliver full range sound to the subwoofer. This particular subwoofer has a frequency limiting adjustment to keep the sub from trying to play higher frequencies. Problem solved.
