Listnening priorities : 70 Music vs 30 Movies.
Last few weeks I have been studying about Room treatment.
Few Decisions I have made.
Currently my room is 17' 4" X 12' 3" X 9'. Initially thought of increasing the size to 22' ft in length. Gave up the idea as it involved more civil work, more expenditure etc. Also I thought 17 ft is not too bad of a size of a room. Also Will be creating Acoustic panels such that they can be removable.
Acoustic treatment design will consist of two parts
1. Broadband absorbers which will be positioned on the side, back and front walls.
2. 3 Superchunk(right triangle rockwool from floor to roof) bass absorbers.4th one I cant use as there is entrance door situated there.
All the acoustic panels will be 4 inches thick. Will be using 96 Kg/cu.m Rockwool.
My side walls will contain 6 ft width X 4.5 ft Height panels. There will be three panels each of 2 X 4.5. These will be positioned based on the first reflection points. These will be hung 2 inches away from the wall. To hang them away from the wall I will be using a A nut bolt method where the screw will be embedded into the back part of the panel. The front part of the screw with the head will be inserted into the frame hanger which is fixed into the wall. This is like frame being hung on to the wall but the nail is on the frame not on the wall. Another advantage with this method is I can remove them and change the spacing between wall and panel by rotating the screw to 0,1,2 or 3 inches. I will be using 4 inch nut bolts.
My Back wall is pretty close to my seating position I will have a 6ft by 4.0 ft panels. I dont have too much space so I am planning to stick them to the wall leaving no space between the wall and panel.
My front wall where I hang my projector screen will be covered with absorbtion panels about 8ft X 5 ft. It will starting at 32 to 34 inches from the bottom and reaching up till the roof. My 32 inches from the floor will be covered by my new HT rack. Same with my front panels, I will stick them to the wall leaving no space between wall and panel.
Question : My Projector screen will be hanging over this absorbtion. The screen will always be pulled down. The spring action which the screen had is all gone. Will this be a problem for absorbtion not happenning. If so I might need to fix my screen such that It will go up as and when required.
My Front two corners will contain two super chunk corner bass absorbers. The dimensions of each being 17X 17X24 inches. I can only use one back super chunk corner bass absorbers of size 15 X 15 X 21 inches. On the other corner I have the entrance door situated.
I might treat my center of my ceiling with 4ft by 12ft with 12 ft being parallel to the speaker line and 4ft being the width. Not decided yet. Currently my room's fall ceiling is already done. Dont want to disturb it. If at at all I do it it would be such that I will run two Iron rails parallel to the Speaker line. Then hang the absorbers to the two rail lines. Before I commit to this I will test it without the ceiling absorbers and then decide about it.
Let me know your opinions.
