Hey guys!
So i finished making my K-402 MEH in wood and brought them in a large room.
There is only A TV desk, speakers, a sofa and that's it.
This is how the room currently look like:
The RT60 times a very huge:
Since this a huge horn with directivity control down to 100Hz, i figured i don't really need much of 'first reflection' treatments. What i need is to treat walls near the edges of the horn and somehow reduce the reverberation time of the room.
I will be placing QRD diffusers on the ceiling covering 3 meters between listening position. To cover half of the space i will need about 13 of them.
This will be made out of high density XPS, painted and look like this:
Will place a rug on the floor between the sofa and listening position.
And on the side walls near the sofa i am thinking of placing Leanfractal diffusers. 3 pieces on each side wall.
Leanfractals on the front and side walls will look like this:
Oh, and 5 diffusers on the back wall with some furniture:
Will it be enough to deal with excessive reverberation? Or do i need more absorption rather then diffusion?
So i finished making my K-402 MEH in wood and brought them in a large room.
There is only A TV desk, speakers, a sofa and that's it.
This is how the room currently look like:
The RT60 times a very huge:
Since this a huge horn with directivity control down to 100Hz, i figured i don't really need much of 'first reflection' treatments. What i need is to treat walls near the edges of the horn and somehow reduce the reverberation time of the room.
I will be placing QRD diffusers on the ceiling covering 3 meters between listening position. To cover half of the space i will need about 13 of them.
This will be made out of high density XPS, painted and look like this:
Will place a rug on the floor between the sofa and listening position.
And on the side walls near the sofa i am thinking of placing Leanfractal diffusers. 3 pieces on each side wall.
Leanfractals on the front and side walls will look like this:
Oh, and 5 diffusers on the back wall with some furniture:
Will it be enough to deal with excessive reverberation? Or do i need more absorption rather then diffusion?
Attachments
Hi,
To lower RT you'll need absorption. Diffusion won't hurt ( quite the opposite) and maybe it'll be enough to make the room sound good to you despite an high RT.
But if you need to lower RT i see only two way: either absorbption either some 'hangers' ( but you usually need high ceiling for them).
To lower RT you'll need absorption. Diffusion won't hurt ( quite the opposite) and maybe it'll be enough to make the room sound good to you despite an high RT.
But if you need to lower RT i see only two way: either absorbption either some 'hangers' ( but you usually need high ceiling for them).
'super chunk' bass traps in the rear corners looks possible (absorbers). The front upper tri corners also look like you can get some absorbtion in. Nice big room BTW! How To Build SuperChunk Bass Traps That Work - ANDREW MAT
basicly put this in any available corner.
basicly put this in any available corner.
Hi Kipman725,
Ime superchunk is ok on low ( around 100hz and a bit less) but they do almost nothing lower in freq ( at least for the one in the room i've implemented them).
I agree these is a very nice room.
Stabme what is ceiling height?
If i was in need to lower reverberation time i would implement an absorbent ceiling: something like rockwool tiles ( rockfon) with 100mm rockwool right over them and a plenum ( free space) of 100mm too with a bit of space ( something like 10mm all around the walls).
It should be effective as a wideband absorber ( when i built control rooms it was the standard practice for ceiling for the acoustician i worked with). You could implement diffuser of same dimension that the tiles too a little in front and above ( if you need them) like this one ( other finition exist) : RT60 - Diffuseur acoustique transparent
Ime superchunk is ok on low ( around 100hz and a bit less) but they do almost nothing lower in freq ( at least for the one in the room i've implemented them).
I agree these is a very nice room.
Stabme what is ceiling height?
If i was in need to lower reverberation time i would implement an absorbent ceiling: something like rockwool tiles ( rockfon) with 100mm rockwool right over them and a plenum ( free space) of 100mm too with a bit of space ( something like 10mm all around the walls).
It should be effective as a wideband absorber ( when i built control rooms it was the standard practice for ceiling for the acoustician i worked with). You could implement diffuser of same dimension that the tiles too a little in front and above ( if you need them) like this one ( other finition exist) : RT60 - Diffuseur acoustique transparent
Last edited:
Haven't decided on it yet, but probably will use multiple subs or maybe an active trap.
Here is an interesting experience with DIY active bass trapping.
Yes, probably multi-sub approach is the easiest and the correct one. I am exercising an idea of making a DSP based MFB woofer. If the idea proves as workable, i will make 3 such subs and use them across the room.
I have 4 of them in our house, but they are super ugly. The rear corners are occupied by the furniture and front corners are not an option because i am using large MEH horns and i like to corner load them.
A nice one, indeed - thank you! Only very boomy at this time. BTW, i feel that I have become very adapted to the RT in this room. Ceiling height is 3 meters (9.84ft).
Yes, read about it and thought about it. There is a good study by Fazenda who compared sifferent sub setups and found that source-sink setup (DBA, basically) was most preferred by listeners.
I have full range 2-way speakers located in corners. These are K-402 horn based multiple entry horns. They can be seen on the original post in this thread. They go down to about 25-30Hz. So sub-band is kinda covered in the front of the room. So i could start by adding two inverted and time aligned subwoofers on the rear of the room and see if that makes a good difference.
I have full range 2-way speakers located in corners. These are K-402 horn based multiple entry horns. They can be seen on the original post in this thread. They go down to about 25-30Hz. So sub-band is kinda covered in the front of the room. So i could start by adding two inverted and time aligned subwoofers on the rear of the room and see if that makes a good difference.
Installed diffusers on the ceiling:
The area is 3 by 3 meters, 9sq/m total. 13 pieces are 2D, which, according to QRDude, will diffuse between 600-2100Hz. Other 12 pieces are 1D diffusers which work at around 2200- 6800Hz.
Hope that mixing 1D and 2D diffusers is not a big problem.
The area is 3 by 3 meters, 9sq/m total. 13 pieces are 2D, which, according to QRDude, will diffuse between 600-2100Hz. Other 12 pieces are 1D diffusers which work at around 2200- 6800Hz.
Hope that mixing 1D and 2D diffusers is not a big problem.
Attachments
