2. misc-audio
  3. 1007874054

How do you improve bass response in a null?

My listening postion on the sofa is unfortunately in somewhat of a null, thereby reducing bass reponse. Since I use the room for both 2-ch & HT, I like my position to be centered on my 53" RPTV, which by necessity has to be centered on the front wall.

How does one reconcile optimal sound with optimal viewing angle? If I were to move my position on the sofa, I'd have to slide both speakers in the same direction in order to stay centered between them. While doing this, it would upset the balance for home theater, not to mention having one of the speakers blocking a portion of the screen.

Is there a simple solution to this problem that I'm not realizing. If the centerline of my room is a null zone for frequencies around 40hz, would moving the sub have an effect. Or is this room location always going to be in a null zone regardless of the sub's position?

Anyone got any theoretical or practical experience with this problem?

Thanks.
kenl

Showing 2 responses by dbw1

dbw1
173 posts
 
I imagine experimenting with sub placement would help. Also, you could move the mains either forwards or backwards a foot or two without changing the fact that you and the tv are centered between them. That might work. Less likely to work, but still a possibility, is to move the speakers slightly farther apart. I'm guessing you've found the right spot for the mains though, so I'd try the sub first.
dbw1
173 posts
 
Both brand and location make a difference for quality and spl. I don't think integration per se has anything to do with SPL (if we're talking about the same definition of integration), but there might be something I'm not thinking of. A Rel sub might not produce a null zone from the same location because they're down-firing (if the M&K is a front-firing sub). Getting a similar sub with more power may not do the trick, if the null zone is caused by by the room structure. The Rels, btw, don't come with the most powerful amps out there. I'd definitely experiment with moving the sub around a little. That's the easiest and cheapest solution.
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