How To Assemble The Acoustic Fields DIY Diffuser Kit - www.AcousticFields.com
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- Опубліковано 24 лип 2024
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In this video I show you how to assemble our new DIY diffuser kit in a matter of minutes. With everything already made to measure its as easy 1, 2, 3 to slot together. The DIY quadratic diffuser will let you hear so much more of your music that your system is producing but which your room is masking from you.
The DIY quadratic diffuser kit featured in this video is available here www.acousticfields.com/product...
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2020 and no ones said it yet, so here goes, Great job Carl!
Karl says thank you.
Sweet, thanks for the tuorial!
Thanks Gilbert. I see you're in Phoenix. Would you like to come down to our main testing studio in Phoenix one weekend in the next month or so? It is a very unique facility as it is where we test all our latest acoustic treatment technologies and not open to the general public. "The Chair" at the listening position is an incredibly powerful place to sit. If you love music you will hear some sounds in it you've never experienced before.
So anyway if it's of interest please come on down, bring your favorite music and sit in the chair and experience a very unique setting. You're welcome to bring a friend or two or any music loving friend for that matter. We just want to share this experience with more people.
Shoot me an email at info@acousticfields.com if you're interested and we can work out a free date.
Cheers
Dennis
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Hi guys, love your channel!! What is the approx. dimensions on the unit you’re showing in the video is this all built out of pine?
You can build diffusers any width or height size that will meet the room and usage requirements. The diffuser shown is a prime 7. Each sequence is 14" - 15" wide. You can combine 2 full sequences into one diffuser.
Can I build a broad working helmholtz resonator across the back wall where the front face is an diffusor? So a combined system?
Mr. What are the frequencies of concern? Resonators are frequency specific and you need a lot of them.
Can you stretch a thin fabric over the front of the diffuser? If so, what would be the acoustic effect? Thanks for your channel. It's immensely interesting.
No fabric over the face of a diffuser. These are passive devices so we can not have any air flow restrictions.
@@AcousticFields Thank you for answering. I hugely appreciate it. If I may ask a follow-up; because in my situation, it may be a matter of a) being able to have it or b) not - due to decoration differences in-house, so to speak :) Is it a matter of a smaller % of functionality degradation, or would it completely kill the functionality of a quad diffuser? Again, thanks so much for your time, and for all your video material. Hugely inspiring.
Excuse me guys, what is the usage of this product? I got stumbled on this video! Thank you in advance!
Hi Ludwig Skiller
Its used in room acoustics to help create a diffused soundfield... or in everyday english, to make your room sound larger than it is/make the walls go away. This video I made on how sound diffusers work will explain in greater detail ua-cam.com/video/8OYYnGk30Qg/v-deo.html
Thanks
Hi Dennis, would adding absorptive material inside of the wells make the Diffuser more efficient at lower frequencies? Thanks.
+AGWillMusic The well depth of a quadratic determines the lowest frequency at which energy is diffused. The well width determines the highest. If you add absorptive material to the well depths, you disrupt the diffusion frequency response. I can not think of any scenarios where you would need to do that. Dennis
Thank you for your reply!
@@AcousticFields but don't you make a QRD that has the insulation in the wells?
Might be i'm in the wrong here, but wouldn't a 375 Hz soundwave pass through the "lid" for the wells considering its not that thick - or is it a highly dense material? In that regard, would it be better if the wells were "all wood" all the way to the bottom? it obviously knocks up the weight though.. Also, is there an optimal relation between the well width and the thickness of the fins that separate the wells? All help appreciated :)
Hi Oslo, The well depth of a quadratic diffuser is based upon quarter wavelength rules. The width of each well is based upon half wavelength rules. It is the combination of both of these that give you the lower and upper registers of the frequency response for each prime number. The thinner the well divider, the better for performance. A thinner well divider affords for more surface area. Softer woods make for warmer tonal qualities.
Thank you. However, i cannot get my head around the fact that 375 Hz is close to 1 meter wavelength and that such a wave easily will go through the rather thin "well-lids" and therefore not be affected by the diffuser. But might be the quarter wavelength rule applies to this? You are the experts here :)
Hi, I have seen some other Quadratic Diffuser which has different height between the panelwoods? What is the different with this one which has same height?
Hi Sebastian, Diffuser height is determined by room usage, distance to listening position, and a host of other variables. There is no "one size fits all".
do you not offer this DIY Diffuser Kit any longer?
We can build you whatever prime number sequence you need. Minimum purchase is 4 kits.
This looks like a very practical approach, but what type of diffuser is this? It looks like a quadratic residue diffuser, yet it has the wrong number of wells.
Hi KennyTew2, It is a quadratic series diffuser based on prime 7. The 0 sequence well has been removed. It is not audible in its absence and it decreases the width of each unit by 4". There is a zero position well established when diffusers are placed side by side which they normally are and thus the cabinet edges join together for the missing 0 well..
This makes the units overall width at 14 1/2" which our project studio customers really enjoy. It also only weighs 20 lbs.
Thanks
Dennis
Acoustic Fields Ahh, thanks for the feedback, that makes sense.
Nice. DO you guys deliver to uk?
We can arrange for UK delivery yes. Please email me at dennis@acousticfields.com with your details and I can get a quote for you. Alternatively you can buy the DIY build plans and cut the wood yourself. Those are on sale here www.acousticfields.com/product/qrd-11-quadratic-diffusor/
Acoustic Fields
Thanks, I didn't realise you sell the plans, i feel like getting my hands dirty :)
do different prime number mean different things? many thanks will
+Wiremu Yes, higher prime numbers mean a lower diffusion frequency range at quarter wavelength or well depth.
Should i put a diffuser on the back wall or a quadratic diffuser? its confusing. thanks for any help ;)
I may have missed it but I don't see anywhere on the website where this kit is available. Are the kits available for sale?
We do not offer them on the site since there was no demand. We can build them for you. You must order 4 minimum.
@@AcousticFields thanks for the info! how much would four be? i've really been enjoying your videos
What type of wood do you use for this and your QRD 13 diffuser definitely lighter and easier to manuever than 1/4" plywood also seems that I would need a a finer Dado blade
J, Use the tool that fits the task. Softwoods are best for diffusers.
Will hard plastic work as a diffuser?
T, No, hard materials are not the first choice for good tonal qualities in a diffuser. Stay with softer woods.
hello it's very accurate and stunning this is the Shroeder classic...thanks a lot can I get the measurements ??
Hi, yes they are available here www.acousticfields.com/product/qrd-11-quadratic-diffusor/ Thanks Dennis
Acoustic Fields oh it's so nice..thank you a lot
At what frequency band is the diffuser?
Hi Jaroslaw, It is 375 - 3,450 Hz. It is the P - 7.
_"At what frequency band is the diffuser?"_
Around $400 kHz.
if this is prime of 7 why only 6 wells?
S, The 0 well or reflection surface is a combination of both cabinet edges. Since diffusers sit side to side, you can count the cabinet edge in the total sequence as a 0 diffusion surface which means it is reflective.
smart good idea
wow... 400 dollars for wood that you put together yourself? I made a skyline diffuser for 30 bucks
Hi CJ Cox Well its really the labor cost of having a professional carpenter cut, prepare and dado the pieces. By all means come and give us your labor time for free although I'm sure there are laws against that.
Thanks
Dennis
Hey CJ Cox I went ahead and asked my colleague to ask me your question in this weeks Google Hangout. You can see my answer to your question here. I hope it helps:
ua-cam.com/video/K1B0lqL7C0A/v-deo.html
Thanks
Dennis
Acoustic Fields Eh Acoustic Fields you have to realize that, 1. Wood is cheap as hell, and 2. It takes hardly any work whatsoever to run a few planks through a table saw, and then rout out slots.
I'm sure he knows that. It's like with most professionals. They take advantage of the fact that you can't do it and overcharge like crazy. I got so sick of it I taught myself how to do most things myself. And in the process I learned this: professionalism in most cases is overrated.
You guys don't know anything about running a business do you 😁 You have to charge 2.5 times the material costs and labor to cover all kinds of other things and still make a little bit of profit. I'm sure their profit margin is not unreasonable.