[DougMac]

I mentioned that I had ordered a sample of the Seymour AV Center Stage Screen material.

The sample arrived Saturday and Sunday I had a little time to begin my analysis. I started by making a small poplar frame and using Chris' suggested stapling technique I attached the material. The material has a nice weight and it was easy to get a nice smooth surface.

I stepped back 12 feet, which will be the viewing distance and could not see the weave. Test one passed.

I then did some informal listening tests, first listening to music without the screen or a grill cloth, then with the screen placed in front. It took all my attention to hear a difference. I felt cymbals might have just a teeny bit of sheen missing, but that was only on music with a lot of high frequency energy.

I then did some measurements using REW and and RS meter. I did tests from two positions. The first test was straight on, more or less at 1 meter, with and without the screen in front. The graphs overlaid each other until ~9k. Then, the graph with the cloth started to fall just a little earlier. The graphs were parallel, it just looked like the screen graph was down about 3-5 db in comparison from 9k to ~20k.

The second test was from my listening position in my den. It mirrored the first test, except it looked like the graphs diverged maybe 500k lower. Still, the difference was very small and perhaps just a slight treble adjustment would negate it. These findings are very much in line with Chris' posted results.

During the week I'll be doing some visual tests and hope to post graphs and screen shots.

At first glance I'm very pleased and may have found my HT Screen. I need to make a decision soon because I'm almost at the point to start roughing in my wiring.

Doug