Originally Posted by jarretc
Also, I would go ahead and buy all the measuring software and post my stats but my penis is already big enough so I don't.
We're not worried about the size of your appendage. That's for your own personal benefit. Without benefit of room measuring software, no one can get the best out of their subwoofers system. It's a sage recommendation. And if someone doesn't want to get the best out of their system, at least they're doing so with knowledge and forethought.
Subwoofer sound waves do not play or get along well with each other within the confines of a room's acoustics. When subwoofer sound waves run into each other, depending on which direction they're going, they'll either reinforce each other or cancel each other out. When they reinforce each other, the sound becomes boomy and when they cancel, you get a sucking out of the energy and usually this takes place in the impact zone, what some call the mid-bass slam.
Subwoofers are like cats, they do what they want, not what you tell them to do and simply placing a single subwoofer in the room is not a guarantee of getting the best out of a subwoofer sound system. One is welcome to place their subwoofer in a near-field location but without measuring software, nobody will know if they're getting the best out of their subwoofer placement.
As to more performance out of a Triax vs a XV30f, if you're sitting in a null, and you are still sitting in a null when the Triax is setup, you're going rob yourself of the Triax's potential.
My wife sits two feet to my right as we're facing the television. Her location tests out six to eight dB louder than my seating position. Because we had measuring software, we found out why she was complaining about it being so loud.....she was receiving four or more times worth of energy at her seating position that was only two feet from my position. The solution, during movie playback, we change seats.
There's also a long winded story about huge nulls that I was dealing with that I was able to correct for by relocating the subwoofers. Without room measuring software, I would not have known about the null and I would not have been able to correct for it.
Multiple subwoofers is not about playing it loud and has absolutely nothing to do with bragging rights although it does my heart good to know I corrected for ringing problems and room nulls without use of room treatments. I could not have done any of this without room measuring software.