Axiom Home Page Forums General Discussion Home Theater Storm damage to HT room?

How far do I place my speakers behind the SmX CineWeave screen?
The speaker baffle can be 2" - 3" minimum up to 24" or more from the screen.

According to http://www.smxscreen.com/projection-screen-questions.html#1

You can place the speakers up to approximately two inches from the screen surface, as long as you don't have ports with high velocity airflow. The deeper the bass that the speakers behind the screen are reproducing, the more you space you should give between them and the screen. You can place a subwoofer behind the screen as long as it is spaced at least 12 inches away and no ports are directed at the screen.

According to http://seymourav.com/screens.asp

Well, this tends to negate my plans, because the M80 in-cabinet have front ports. Back to the drawing board. I wonder if I can interfere with the ports in such a way to force them to be down firing ports instead?

Edit: Or make sure the ports are firing below the screen?

Can't you have the ports firing underneath the screen? or do you want the speakers completely concealed by the screen?

Hi,
At 2 inches in front of the M80 In-Cabinet port you could install a large deflector to deviate/spread its air flow.

Thanks. I like the deflector idea the best. That probably could be easily built into the frame that holds the screen a couple of inches from the wall. I was just looking at some paradigm in-wall speakers, but they didn't look to be any better then the on-wall M22's. I would prefer the full range sound of the M80's.

I want the clean look of not seeing any speakers at all. This would allow me to have a 130 inch wide 2.35:1 screen. But that might be too much at 8 to 11 feet viewing distance. It definitely would be impressive.

My goal is to have a smooth, clean, simple look, with only the QS8's and maybe a sub visible in the room. If I can afford it (with a little luck in my Roth IRA), I'd like to put the EP800 under the screen on it's side.

A longer room would be better, but that's just not going to happen anytime soon.

Hi CatBrat,
The EP800 in its horizontal version could be inserted in a niche under your screen and it would give you spectacular and awesome bass.

I'm a big fan at sitting close to the screen. I normally find people sitting too far away, spoiling the large screen effect. I have a 16 x 9 - 151" diag. screen and I sit 14.5' feet away which I feel is great. On action sports, like hockey, I sometime feel that I'm sitting too close. Friends coming over to watch a game find it too close and move back one row. Your main sitting position at only 8'11" from your large screen, it might be uncomnfortable for action movies and sports.

You should seriously consider testing your sitting distance using the appropriate ratio.

It's going to be kind of hard to test the sitting distance without a projector. It'll be a little while before I can get one. It seems that the one I really need is the Panasonic ptae4000u and the price is still around $2000. Unfortunately, I'm going to have to wait until about the last thing to see exactly what size screen I need. I want to get the room going good first. But if I can fit a 120 to 130 inch screen, I say why not. (At least for now). At theaters, I like to sit about 1/3 to halfway back.

I removed the paneling on the screen side of the wall, hoping that the 3 1/2 foot concrete wall didn't go around the corner to this wall also. That would have been a problem. But, as you can see it's only about 1 foot high.


Here's the screen wall with the paneling removed. I'm shining a flashlight on the center stud where the center speaker would go. I'll have to move/remove it. These are 2x6's with a 2x2 tacked on for the inside wall for a total depth of 8 inches. The M80 in-cabinet is 18 inches deep, so this leaves 10 inches sticking out on the garage side.


Here's the garage side of the wall. Here I need to build out a cabinet area about 12 inches from the wall to house the backside 10 inches of the in-cabinet M80. It looks to me like it should fit. I'm going to re-sheetrock this wall in the garage also because the old stuff needs too much repair to make it look decent again. A lot of bad patchwork from the previous owner that doesn't show up here.

You can test the distance without having a projector. Go to a store where they have a good projector and screen set-up; move back and forth. Establish where you feel comfortable (using multiple types of video material)then measure your distance to their screen and do the corollation with your installation (projected seating distance and screen size).

I helped a friend installed his Panasonic 4000U a few weeks back; it is a superb machine. I own a 2000U and the 4000U is much better.

Good idea. There's a HT store about 15 miles from me that has a screen setup that I can test with. Thanks.