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Speaker placement reflections


wata

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Im thinking of moving my ht to another room in the house(my wife). The room is 11 by 14.Due to the windows and built in's the only choice for the RF-7s would be 3ft from the left side wall and only 1ft from the right wall.The FAQ says 4ft from side walls to avoid reflections.How bad will this affect sound.Is there a remedy such as wall installation etc...

Thanks

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Well, Wata... just like the pioneers heading for California, you have come to the Great Divide between IDEAL and PRACTICAL!

Chances are that over time, your brain will refine what your ears are reporting to make things wonderful... or at least more wonderful than the expense of moving the walls over the required number of feet. Wink.gif LOL

Using your ears and an SPL meter, you may find that altering the amount of toe-in between the Left and Right Mains may help in balancing "reflections." Reflections are what acoustics are all about... but before you start spending time and money on the "solution"... make sure you have enough of a "problem" with which to be concerned!

The RF-7 is a great Klipsch design breakthrough and far more tolerant of placement nuances than the rest of its more horn intensive brethren. Try it... and if you don't like it... I am sure their are a lot of folks on the Forum who will contribute ways to find RF-7 happiness. -HornED

This message has been edited by HornEd on 04-26-2002 at 11:08 AM

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No doubt there will be more reflections on the side where the speaker is only 1' from the wall. Those reflections will alter the mid and high frequency smoothness at your listening positions and will add bass. You can deal with the mid/high issues by placing an absorptive or dispersive unit at the point of first reflection. To find that point, sit in your normal position and use a mirror propped up against the wall about half way between you and the speaker. Where you see the speaker in the mirror is the spot you need to treat. Try placing a blanket or other absorptive item on the wall at that spot. It's a free test of the difference you can make with acoustic material. To go inexpensive, buy a 2" thick piece of fiberglass insulation (the semi-rigid kind not batting) and frame it, then cover with some attractive cloth and hang it on the wall. It'll do a pretty good job for very few bucks.

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