Join Date: Feb 2007
Location: down by the river in a van in kalifornia
Mentioned: 7 Post(s)
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Quoted: 56 Post(s)
No null if a sub is placed nearfield. It can be placed 3-4 ft from your seating area, and then there can be a null. Usually a null can be
reduced by acoustic treatments, but mine is bad enough, treatments will not help. And treatments are usually only good down
to 60Hz, unless the treatment material is a foot or more thick. I do have treatments in my room, and it did help. My subs
didn't play louder or deeper, just smoother. I have 6 treatments in my room, two at ea absorption of the first reflection point of the
left and right mains, and 4 bass traps, which are 4' x 2' by 4" thick. Two, each placed in the left and right front corners
up front, and 2 ceiling to wall in the front also.
If a sub is placed close enough to where you're listening, it will greatly reduce a null. It just has to have the sound tweaked
so you can not localize it.
The best spot for your sub is where the entry door that intersects with the wall to the stairwell, but obviously you cannot put it there.
Usually if you place a sub behind your seating area (and I don't mean 3 or 4 ft, it will greatly help). Or near the end of your seating
area, assuming you don't have a row of 10 seats, and you sit in the middle. In that case i'd put the sub right behind the listening area,
between the middle of the seats. Just my IMO, and I've already experimented with another sub per my post. It made a pretty nice
difference, one that I could not ignore. Your should Email Tom V to get his take. He is a big on acoustic treatments (especially
before any eq programs are run).
So a person can reason, why do the sub crawl, or drag the sub(s) all over the place? Just place the sub nearfield and forget it.
Placing the sub nearfield IS NOT the best place for your sub. It can play deeper and louder in the "ideal" positions. But placing
a sub nearfield greatly reduces stubborn nulls.