dkulmacz
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I'm designing some improvement to my home studio/music room and looking for some advice on how to finish up.
Basic room is 10' by 12' by 8' with an open closet on the back wall. Speakers are two Kali IN-8 monitors and an SVS SB-1000, all placed up against the 10' wall, controlled with a MiniDSP 2x4 HD providing crossover and EQ. It's got a bit of absorption treatment already, all made from soft rockwool in fabric casings: floor-to-ceiling 'superchunks' in the front corners, a couple small superchunk wedges on the back and side floors against the walls, 6" thick panels at the first reflection points on side walls from the hip molding up, and a 3" thick ceiling cloud. I'm currently in process of making two more 6" deep panels that I'm mounting diagonally across the side wall-to-ceiling corners, covering about half the length of the room. I've attached a diagram showing the setup, FYI.
I have two spots left available to add a final bit of treatment.... on the side walls, behind the listening position past the room's halfway point (shown by red stars in the picture). My question.... should I just add another two panels of 6" thick DIY rockwool absorbers (15" by 45"), or add two DIY cylindrical diffusers?
The diffusers would be made from sections of a 28" diameter heavy cardboard tube, typically used as concrete molds. I'd start with a 4 foot length of tube, cut it into 120 degree sections, and attach them to an appropriately sized piece of MDF board. I'd probably paint them, or cover them in thin cloth strictly for looks, and could theoretically also fill them with rockwool. Then mount them on the walls. In the end, they'd be about 22" wide, maybe 5" deep, and extend from the ceiling wedge downward. I've considered using the third piece to make a "portable" diffuser of similar dimensions that I could stand up somewhere as needed (probably mainly directly behind the listening position, perhaps in the closet behind the curtains). Making the diffusers will be more expensive and more difficult, but not by all that much.
I did a bit of analysis on cylindrical diffusors of these dimensions with a program that simulates diffusors in a room (can't remember the name), and they seemed to produce acceptable diffusion patterns (all things considered). I've also investigated making other types of diffusers (skyline, fractal, quadratic residue) but they all looked a bit too expensive and difficult to be worth the effort. The cylindrical seemed a good compromise to add some diffusion where none currently exists.
I'd appreciate any advice on whether you think diffusion will make a noticeable and positive impact compared to more absorption, and justify the cost and effort.
EDIT: Here's a pic showing the expected size and location of the diffusers......
Basic room is 10' by 12' by 8' with an open closet on the back wall. Speakers are two Kali IN-8 monitors and an SVS SB-1000, all placed up against the 10' wall, controlled with a MiniDSP 2x4 HD providing crossover and EQ. It's got a bit of absorption treatment already, all made from soft rockwool in fabric casings: floor-to-ceiling 'superchunks' in the front corners, a couple small superchunk wedges on the back and side floors against the walls, 6" thick panels at the first reflection points on side walls from the hip molding up, and a 3" thick ceiling cloud. I'm currently in process of making two more 6" deep panels that I'm mounting diagonally across the side wall-to-ceiling corners, covering about half the length of the room. I've attached a diagram showing the setup, FYI.
I have two spots left available to add a final bit of treatment.... on the side walls, behind the listening position past the room's halfway point (shown by red stars in the picture). My question.... should I just add another two panels of 6" thick DIY rockwool absorbers (15" by 45"), or add two DIY cylindrical diffusers?
The diffusers would be made from sections of a 28" diameter heavy cardboard tube, typically used as concrete molds. I'd start with a 4 foot length of tube, cut it into 120 degree sections, and attach them to an appropriately sized piece of MDF board. I'd probably paint them, or cover them in thin cloth strictly for looks, and could theoretically also fill them with rockwool. Then mount them on the walls. In the end, they'd be about 22" wide, maybe 5" deep, and extend from the ceiling wedge downward. I've considered using the third piece to make a "portable" diffuser of similar dimensions that I could stand up somewhere as needed (probably mainly directly behind the listening position, perhaps in the closet behind the curtains). Making the diffusers will be more expensive and more difficult, but not by all that much.
I did a bit of analysis on cylindrical diffusors of these dimensions with a program that simulates diffusors in a room (can't remember the name), and they seemed to produce acceptable diffusion patterns (all things considered). I've also investigated making other types of diffusers (skyline, fractal, quadratic residue) but they all looked a bit too expensive and difficult to be worth the effort. The cylindrical seemed a good compromise to add some diffusion where none currently exists.
I'd appreciate any advice on whether you think diffusion will make a noticeable and positive impact compared to more absorption, and justify the cost and effort.
EDIT: Here's a pic showing the expected size and location of the diffusers......
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