Best Speaker Placement Rules you've used?

Well width height and depth of image are a function of reflected energy which it does measure. So it can maximize the image your speaker system is capable of producing.

It will tell you how far your speakers are from the microphone, which can be very important, it will show a spectral decay plot and impulse response of your system and room which will help you find problematic reflections, vibrating objects etc.

It is extremely helpful for so little money.

It will rate your room acoustics versus RT standards and it does do frequency and phase.and many more things that you can read about on the website.

Click the link I provided in my 2nd post.

It will give you a visual tactile report your system's performance and "really" help you understand and solidify your system in a pretty short time.

Still use Cardas and Allison to get a starting point, but that's all they are is a good starting point.

Put them where they sound good.

Seriously.

Hi,

I used the Cardas style method as well, following Diagramm C. Mainly because my room is 10.5 x 17 ft, exactly in the golden ratio. It worked really well, although I thought the palcement looked ridiculaous at first.

Furthermore, here is a great free link to Ultimate AV website (Don't run away because of the V in the titel), which offers an Excel spreadsheat to calculate room modes. The sheat further calculates the frequency peaks and nulls at your listening position.

Excel calculation

All you need to do is enter your room dimensions and seating position and you get all the data you need. Nice way to play around with the seating position.

The programm also works for speaker placement since you want to avoid the speaker to sit a null point or maxima.

The interesting thing is: I took some measurements of my system/room a while ago using a corrected Radio Shack SPL meter, and I could see all the predicted "nulls" as little dips in the measured spectrum.

This is a really nice way of playing around and given my measurements it seems to work.

AND MOST IMPORTANT: Besides all this theory, don't forget to listen, your ears will tell you the best location. But the calculations might be a good starting point.

Enjoy!

Rene

Hey Newbee how do you find that program on the Rives site ? Thanks Larry

On Audiogon - dammed if I know. He used to have a site on Audiogon, but I can't find it now.

HOWEVER!!!!!! Go to Audio Asylum - Rives is listed as a sponsor where he has all his products and a forum. Down load his Cara program - this should do it for you.