Originally Posted by shadyJ
I disagree with this. The vast majority of bass content, even in movies and even in the ones in the aboce list, is above 25 hz. Now I wouldn't want my subs to roll off much lower than that, but I think a lot of guys around here are kidding themselves about the prevalence of bass in the low 20s and under. It mostly only happens briefly in only a few scenes in certain kinds of movies. There are exceptions of course, but the problem there is if powerful deep bass is used frequently in sound track mix, the audience becomes numb to it, and it isn't anything to take notice of anymore. It's sort of like how music is mixed very hot and highly compressed, it loses its dynamic range and becomes a flat listening experience. If the sound mix is nothing but constant deep thuds and rumbles, the novelty wears off after 5 minutes, and you are left with a grueling movie watching experience and a need for aspirin. One example of this for me was Iron Man 2.
While you are welcome to your opinion, I respectfully disagree. IME, infrasonic content adds a level of immersiveness and involvement that is missing without it. I have owned subwoofer systems that rolled off at 25 Hz, 20 Hz and my current system that is flat to below 15 Hz. The differences between these systems are noticeable and remarkable. I would not want to go back to a system that could not reproduce infrasonics.
I will acknowledge that what comes along with infrasonic capability is massive *sonic* capability. In order to produce the ultra-long wavelengths of low frequencies at high output, you need massive amounts of excursion and multiple drivers. All that excursion means you can also do the sonic bandwidth at very high output with low distortion. That certainly adds to the impact and effect. However, the pressure and sensation of the infrasonic range can add a sense of apprehension, dread or fear that sonic content simply can't.
We watched Looper the other night. That movie is loaded with infrasonics. I watched it again just last night because it was so good. (It's a pretty good movie too.) I'm sure it "sounds" fine on a 25 Hz limited system. However, on a system with high output infrasonic capability, it "FEELS' great also.