Originally Posted by coolcat4843
Take all the flawed information that BeeMan458
gave you with a grain of salt.
Care to take the time to point out anything I posted above, that was "FLAWED." .....
To get the best out of "ANY" subwoofer system, one needs room measuring capability. There's "ZERO" chance of "ANYBODY" getting the best out of "ANY" system if not using room measuring devices.
Uncorrected, room sucking nulls do suck the life out of LFE based content and if the subwoofers can't keep up with the rest of the sound system, the subwoofers will be left behind.
Multiple subs do not remove standing waves as one needs room treatments to do that. Multiple subs helps overcome standing waves issues but doesn't rid a room of naturally occurring (non-subwoofer related) standing waves and sometimes, due to reinforcement issues, makes standing wave issues worse. Even when our sound system is turned off, the refrigerator and freezer are unplugged, all fans turned off, at the main listening position, our room has four measurable standing waves and none of them has to do with 60Hz as our room doesn't have a 60Hz standing wave issue and to make sure a 60Hz tone isn't introduced during measuring sessions, I use a quality ground loop buster to remove a particular, identified, system introduced ground loop problem.
Uncorrected ground loops add energy to measurements and give misleading readings. Ground loops "MUST" be corrected for or the measurements are not to be considered valid. Our ground loop issue adds a measured 13.1mV to the measurement reading. With the ground loop eliminator, the ground loop is reduced to 0.1mV.
Yes, multiple subs is about getting it loud (anybody who says it's not is only kidding themselves) as one has to pressurize the room and you ain't gonna fully pressurize a room with two or three, small, underpowered subwoofers. There's a reason subwoofers cost more than others and the ability to play it loud (lots of amplification put to large, capable drivers) is one of the reasons.
If one expects to be true to the sound engineer's intent, they need a sound system capable of reproducing what the sound engineer intended and LFE's are not intended to be played back on anemic gear nor is it expected for these effects to happen over long periods of time. Quality waterfall charts show subs responding in less than 400ms (200ms or better is better), so yes, it's expected for the rise and fall to take place in this short of a measured time frame. More then that and one ends up with fat, bloated, smeared, ill defined bass; not good.
There's a reason quality built subwoofers have powerful amplifiers, large magnets, stiff cones, better spiders, stiffer cabinet construction and by comparison, cost a boatload more over lesser driver/cabinet builds.
Lastly, multiple subwoofers "IS" about getting quality, "LOUD," sound in a Home Theater environment. Anybody, no matter their credentials, who says reference isn't about loud, is kidding themselves and maybe trying to kid others but they're not kidding me....
I intentionally post in general terms as many here get very lost (caught up) in the esoteric nature of the pursuit and in doing so, lose the causal observer who's not up to their speed of thought. It never hurts to bring it down to Earth where the rest of us mortals live and play.