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What you want to do with the rigid fiberglass is place it so it spans the corners of the room. The fiberglass panels should be touching both the walls, so there's a triangular air space behind them. Even though I can't space this correctly, you get the idea. |_\

Yes, it would be good, if you can afford it. The more bass trapping, the better. The trihedral corners are the best place to start, but once you've got them covered the regular wall ceiling joints and floor wall joints are the next best places.

Groovy. Let us know how it turns out! :cool:

Ethan Winer wrote an excellent article on acoustics, he's been a real help to a lot of people including me. Check it out, it has tons of information you need. http://www.ethanwiner.com/acoustics.html

Yeah, check out this article that Ethan Winer wrote. http://www.realtraps.com/art_monitor.htm

Yeah that's true, although there's only so much bass in a voice. But yeah, if you just use foam with no bass traps then your bass frequencies will still be bouncing around the space and it'll give you a muddy, boomy sound. The good news is that acoustically treating your room will probably be...

Then the back wall will be substantially less than 10' from the listening position, which means the back wall should be treated with absorption, not diffusion.

Sorry if you already said this in the thread, but how many feet is it from the front to the back of the room? What's the room size overall? My understanding is that if the back wall is less than ten feet from the listening position, then it should be treated with absorption, not diffusion.

Actually, there's eight corners of the room that you can (and should if space permits) treat, four on the floor and four on the ceiling. While treating mids and highs can be taken too far, you can never have too much bass trapping. If you make the room too dead for mids and highs it'll sound...

5' by 8' isn't very big. Is vocals strictly going to be the only thing you do in this room? If you're actually going to be building this small room just for vocals, may I ask why you're doing that? Is it for isolation, or what? Because if you're going to be using a room in your house for mixing...

Figure 4 would be a better placement than Figure 5. Putting foam behind the fiberglass would help simply because foam is more absorbent than the air that would otherwise be behind there, but you'd be better off spending that money treating more corners with the fiberglass method. One really...

The reason why the fiberglass would be mounted up at the ceiling, forming the triangle with the walls is that all the bass frequencies that bounce around the room build up more in the corners, where three surfaces meet. Two surfaces are good (as in your sketch) but three are better. Fiberglass...

Actually, neither of those configurations will work as well as putting the fberglass in such a way as it forms a triangle with the two walls. Read this, it'll tell you all you need to know. http://www.ethanwiner.com/acoustics.html

Schecters are an outstanding value. Whether or not you like them, they have great features and quality/cost ratio. Best Korean made guitar I've ever played by a looooooooooooooooooooooooong way. Myself, I have the 007 Blackjack seven string model. Tell me, where else can you get a guitar that...

The room is 8' by 11' with an 8' ceiling, just an awful set of dimensions for a room. At least the third dimension isn't a multiple of 8'. Running the calculations shows that the two same dimensions result in a strong room mode at about 71 hz and of course it's multiples. The third dimension...

I already have fiberglass on the walls but the panels are covered in plastic, thus reflecting a bit of highs. I don't know where to find fiberglass panels that are already covered with fabric for a decent price and that are hangable, and I'm not going to get into covering them myself as a...

I have enough money to get a certain amount of square feet of foam. I can get a certain amount of 3" thick foam or I can get more of some 2" thick foam. My room is already sufficiently bass trapped (four inches of sandwiched fiberglass in five out of eight corners). So what I'm wondering is...