This is my first post, but I have been lurking a long time. You have a wonderfully wise and supportive community, centered on a wonderful company.
Could I get your advice? My HT room is 3140^3 ft. My fronts are two old Klipschorn speakers in the corners (they are huge horn speakers that sound great). The room is closed off except for two normal door openings (each 30 inches wide). I hope to listen to a lot of music, especially classical, including organ music with very low sounds. But also I also would love to have stunning, thunderous bass for LFE in movies. Unfortunately, because of WAF concerns, there is really only once place that a sub could go: right under the tv screen, in the middle of the wall between the two speakers. Also, I can probably get away with only one sub, even if two would be better. But I think that I can get away with a very large single.
I had assumed that, because I would be listening to a lot of music, I would choose a sealed sub, because they were supposedly tighter and less boomy. But I have chatted a lot with Tom on the PSA site (he is totally wonderful), and he assured me that sealed subs were not tighter than ported subs; he said that was a myth. He said that people could not tell the difference for music between a well-designed ported sub and sealed sub. But the ported subs had a big headroom advantage in the areas where I needed it: 15 hz - 40 hz.
I had originally been considering a s3600i. But he taught me that one v3600i would produce the same output as two s3600is.
One other issue is that I have a whole bunch of kids, including babies and toddlers (as well as older kids). So I need to make sure that babies and toddlers won't be able to crawl around and somehow disassemble the sub and destroy it.
So I am leaning toward a single v3600i, tipped on its side on the front wall beneath the tv. What do you think? Thanks again for the help!