Recently I have started a home theater project in another room of the house that includes a Toshiba 42HDX82 16:9 HDTV projection unit. Also I have a surround sound system I just bought from Circuit City that includes a RM6700 5 speaker set with a single PSW303 sub and this system uses an Onkyo SR 500 5 x 65 watt at 8 ohms receiver with Dolby Digital 5.1 and pro logic II with pre amp sub out set to crossover at 120 HZ and plugged into the unfiltered RCA jack on the back of the sub. The system is set up following the recommendations in the manual with the rear speaker high on the rear wall facing each other and the sub against the front wall in a corner. The room is 12’ 6” x 13’ 6” and is closed. And by-the-way it sounds GREAT!
Now my question. I would like to have a little more, bottom end. I know I don’t need it but, I want it anyway. I noticed that the 3 db down point is 35 Hz on the 303 although I would guess this is a conservative rating. I want to keep the system clean and not “muddy” things up or mess up a good thing. Also I think the 8” driver matches well with the 5 satellites. Would a second PSW303 placed on the other front wall give me a little more punch and depth? I have heard that a second sub will play 3 db louder (dah) and also 3 db, or more, deeper depending on placement. If that’s true one more of these little puppies would give me some serious sub sonic performance. Or should I just leave well enough alone. Anyway I would value the opinion of anyone with experience with 2 subs.