AVS Forum Special Member
Join Date: Feb 2012
Location: Nassau County, Long Island, New York
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I know 99% disagree with me, but I really feel like those super low frequencies are a total waste of energy/amplifier power. Most set ups that movies are mixed on don't extend that low, so I'm sure any information at that low of a frequency is either unfiltered junk, or left for whatever reason (maybe for those with butt kickers or similar devices).
I recently did some testing and measuring with my dual Submersive HP's, which extend VERY low in my set up and play quite loudly at those those super low frequencies. Even at 20 hz, the bass is barely audible, and being on a concrete slab, I don't feel anything. Nothing shakes, I don't feel anything on my body (pressure or anything) and all I hear are things rattling in my room. As the frequency decreases, so does the drama. Now completely inaudible, I still feel nothing, and the rattling in the room becomes more prominent. And this was upwards of 100db+ at the MLP in my basement theater, so it wasn't a low spl either.
So forgive me, but after experiencing that and talking with a lot of people who I find trustworthy in the audio world, I'm gonna concern myself with frequencies in the audible spectrum. If the sub plays below 20hz, that's cool, but it's not a make or break it for me. The SUB18 looks like like it'll play PLENTY low. Most of the frequency responses are 4 pi (full space) measurements, so in room frequency response will be a bit lower (they state 18hz for the SUB18).
That's just my opinion, there are plenty of excellent products out there. Pick whichever appeals to you. For me (personally), I want the SUB18's in my theater room.
Last edited by Blackdevil77; 01-15-2018 at 05:07 PM.