Absortion Panel(s) Placement

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cincy_kid

cincy_kid

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Ok, so now I have my 12 pieces of OC 703 Rigid Fiberglass - 2" thick (2' x 4' sheets). I will be building 12 frames this weekend that will be covered in fabric and constructed almost identically to the way db did it here .

Unfortunately my room has ceilings that are only a little over 7' so I cant build any tall 8' panels for the corners and I dont want to cut the 703 down to size, so I will deal with 12 panels all the same size that are framed with 1x4 wood giving about a 2" gap from the wall behind each one.

So, heres my question. I am looking for advice on the best way to arrange the 12 panels once constructed.

Here is my current plan (see diagram):

panels.gif


I will be mixing / listening from the desk. I will be recording vocals in the bottom left corner and guitar amp in the bottom right hand corner (or vice versa). I have 3 clouds total, 1 positioned over each recording area as well as above the desk near the monitors.

The rest of the panels are either in the corners or along the sides of the walls as you see in the picture. In the diagram, if they are longer like in the middle of the 3 long walls, then I have them hanging 4' wide and 2' high (all about in the middle of the wall height wise). The shorter orange bars in the pics represent 2' wide and 4' high. Do these look like they are ok or does anyone have any advice / suggestions to better utilize the 12 panels?

Also, for the ones in the corners (behind the monitors), since the are 2' x 4' and dont stretch the entire height of the room, should they be up to the ceiling (kind of like bass traps) or should they be monitor level or even lower?

Thanks again for any help you may provide.

I will be posting pics as i construct this room as promised in previous threads.

- Cincy_Kid
 
First of all, if you want the straddling panels to be effective in the bottom, you need to make them 4" thick absorbtion. 2" even straddling isn't going to get it.

Second, I'd recommend cutting the ones for the corners to get the right lengths. You are really going to want to get both tri-corners (wall/wall/ceiling and wall/wall/floor) if at all possible. Putting them in the middle helps a little but not nearly as much. If you can only do 1 and the monitor tweeters are 4' high or less, go from the floor up.

Bryan
 
Do you have friends? What's it like?

Have a friend move a mirror that's flat against the walls and ceiling. Any place you see a monitor in the mirror should be covered.
 
apl said:
Do you have friends? What's it like?

Have a friend move a mirror that's flat against the walls and ceiling. Any place you see a monitor in the mirror should be covered.
Click to expand...
Would that be from the mix position?
 
How big's the mirror need to be? I suppose you would just swivel around in your chair to follow the mirror around the room?
 
chris-from-ky said:
How big's the mirror need to be? I suppose you would just swivel around in your chair to follow the mirror around the room?
Click to expand...

Just big enough for you to be able to see each monitor, then put your panels so they cover those spots. Swiveling is good.
 
Bpape : Thanks for the suggestions and help. I may stick to the 2" for now and not double it up because my room is so small as it is. Also, since it is such a small room, doesn't that mean theres less need for real bass traps in the tri-corners? And when you talk about the tri-corners, is that possible to build these 2' x 4' frames and stick them in the corners touching all 3 surfaces, or is there another method you are referring to, to utilize the 703?

Apl : Yea, I seen the mirror tip before and its a good one, but I dont have my monitors yet (was going to treat the room first and then buy monitors later). Also, with the room being so small, a lot of the area will be covered anyways. I guess when I asked this question I was thinking more of like:

"build a 3 panel frame that you can put in front of your mics (vocals and when micing the guitar amp) while having the back of absortion panels as well, this is much more effective than just on the walls..."

"the clouds should be repositioned to all over the desk. You dont need them over your recording area..."

I dont know, hehe, things like that. Otherwise the 12 panels I am making will just about cover most wall space anyways.

Chris : Yo whats up? ;)
 
Don't put the plywood on the panels, then space them 2" from the wall. They'll perform almost as well as 4" panels.
 
Are you talking about the straddling panels that Bpape talked about above? If so, how can the be touching the tri-corners and be 2" away from the wall at the same time? :confused:
 
cincy_kid said:
Are you talking about the straddling panels that Bpape talked about above? If so, how can the be touching the tri-corners and be 2" away from the wall at the same time? :confused:
Click to expand...

I'm sorry, I was talking about the panels that are flat against the wall.
 
Ah, no problem :)

Actually, for the ones on the walls, I was going to build the frames out of 1"x4" wood so that when the 2" panels of 703 are inside the frame, there will still be a 2" gap between the wall and the 703. I am hoping thats the most effective way.

But on the tri-corner subject, how would I get the 703 in the corners? Just make a panel and hang it angled in the corner somehow or make a different kind of frame that allows it to touch all 3 surfaces? (dont know im confused on this one a bit)

On another related topic, after some more reading, I am just wondering with my super small room and 12 panels of 703 hanging, will it make my room too dead? Is it possible to have that?
 
cincy_kid said:
But on the tri-corner subject, how would I get the 703 in the corners? Just make a panel and hang it angled in the corner somehow or make a different kind of frame that allows it to touch all 3 surfaces? (dont know im confused on this one a bit)
Click to expand...

Make a triangular frame with all three sides the same length.

cincy_kid said:
On another related topic, after some more reading, I am just wondering with my super small room and 12 panels of 703 hanging, will it make my room too dead? Is it possible to have that?
Click to expand...

Yeah. The rule of thumb is to cover about a third of the walls.
 
I think you're over thinking the tri corners. If you're not going to straddle the wall - wall corner with the 703, then all you can do is put the panels as close to the wall - ceiling corner as you can and be done with it. you already said you didn't want to cut up the 703. And I think you said you want to save room by not straddling the corners. There's not a heap of options left, my friend.
 
apl said:
Make a triangular frame with all three sides the same length.



Yeah. The rule of thumb is to cover about a third of the walls.
Click to expand...


a THIRD of the walls :eek: :eek: :eek:

hehe, did you see my diagram above? It looks like I will be covering 90% !

Maybe I need to rethink making all 12 panels....grrr
 
cincy_kid said:
a THIRD of the walls :eek: :eek: :eek:

hehe, did you see my diagram above? It looks like I will be covering 90% !

Maybe I need to rethink making all 12 panels....grrr
Click to expand...

You could cut the extra panel into triangles and stack them in the corners. Works great for bass trapping.
 
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