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speaker placement help

My room is 13'x18'x11'high. I have my speakers on the short wall 6 feet into the room and about 33 and 1/2 inches into the room from the side walls. The room is rectangular and I have the speakers perfectly symetrical.My question is that should my listening position be an equilateral point from the distance of the speakers or is it OK to have my listening position 1 and 1/2 the distance of the speakers back towards the back wall therefore having my listening position at the back wall as opposed to three feet from the back wall.I've tried both ways and find I get a better bass response with the listening position at the back wall but some say it's good to have distance between your listening position and the back wall and others say it's OK to be at the back wall.Any help would be appreciated!!!
128x128mitchb
gregm
3,407 posts
 
Since you enjoy sound in this position (at least for now) why not stop worrying and listen to music!

The most "correct", as in reproduction of the original, is when you are away from room boundaries & thereby reduce the effects of wall reflections. Reflected sounds are time delayed vs the source, and not in phase with the fundamental sound, generally muddling imaging, clarity, etc. Speakers are usefully 65-75 degrees apart, from listening position. In conclusion, watch out for an isosceles triangle -- but don't worry too much about the equilateral. Cheers
rbirke
144 posts
 
With your head against the back wall, you will experience some doubling of some frequencies - usually a significant increase in treble and sometimes a mid bass boost. If that sounds better, then no problem. But if you find the midrange lost a little bit, get your head away from the reflective back wall.

I once owned some Hales speakers and I loved the inefficient beasts. They produced a ton of bass and the treble was a little hot when the volume went up, so for me, a listening position against the rear wall would have increased problems with the sound. But your room and your speakers and your setup may be just the opposite.

FWIW, I'd try the Hales further apart, against the long wall, and toed in so that the cross point is about 3 feet behind your head.

If you have to be against the rear wall (room aesthetics, traffic pattern) hang something absorbtive right behind your head (thick rug, echobuster, etc).

Good luck,

Rich
beavis
272 posts
 
If room is dedicated (if not, how did you get speaker placement past "WAF"), check out Immedia approach. http://www.immediasound.com/Speakersetup.html

Also, see Cardas approach. http://www.cardas.com/cgi-bin/main_content.cgi?area=Insights&content_id=26&pagestring=Room+Setup

My favorite is Plato's approach. There's a lot to be said for ignoring the "experts."
blptwp
40 posts
 
I thought the following article might help.
http://www.audiocircle.com/circles/viewtopic.php?t=4077
mitchb's avatar
mitchb OP
336 posts
 
I can't seem to get a strong 50Hz and 40Hz but 30Hz is quite strong. All other frequencies appear equal by my ear.
In other words, how can I improve my mid bass?
Thanks for all your help.
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