I doubt he's going to rip apart a finished speaker to do it. And what if it's a first-order crossover?
I would not use Rockwool in open cabinet (BR type), even though it is not fiberglass it is still poison for the lungs and you will be spreading these tiny particles around the room through the BR vents with each move of the cone.
There are some cotton felts available in some specialist stores that might serve well instead of Rockwool.
There are some cotton felts available in some specialist stores that might serve well instead of Rockwool.
I doubt its much worse than fiberfill, or floor carpets
any kind of carpets do that too
your clothing does it
and your PC
but you can spray it with a sealer to make it more dust free
sure, for my latest builds I have only used a modest amount of fiberfill
but I also try to construct in a way that inner bracing supports it
open celled foam can be very expencive, and not so easily available
I have found some now, and will try it
but expect I still use fiberfill to support it
sheeps wool ? yeah, it has its good merrits
and then there is tar impregnated hemp
for small midrange chambers its in a class of its own, and absolutely superb
and combined with open celled foam ? I have to try that
any kind of carpets do that too
your clothing does it
and your PC
but you can spray it with a sealer to make it more dust free
sure, for my latest builds I have only used a modest amount of fiberfill
but I also try to construct in a way that inner bracing supports it
open celled foam can be very expencive, and not so easily available
I have found some now, and will try it
but expect I still use fiberfill to support it
sheeps wool ? yeah, it has its good merrits
and then there is tar impregnated hemp
for small midrange chambers its in a class of its own, and absolutely superb
and combined with open celled foam ? I have to try that
Seriously the sheep's wool or Alpaca wool would attract moths and eventually you will have no filler inside the enclosure and instead of small particles leaving the port you will have flying moths! Do you really want to treat that with an insecticide, that could be even worse and smell.
Well i think yes it is, it is almost the same as fiberglass, totally diffrent particles from clothing or carpets, thay stay in the lungs and will not get out of it, they are cracking some micro tissues there. With long exposure it couses cancer. Google the topic, some safety regulations, using the masks when working with it etc..
Floor carpets do not couse skin itching like rockwool does. Large companies are trying to hide these information in some countries. But there are some European countries where each pack of rockwool is described as extremely dangerous and there are some regulations to use masks and special safety sealed clothing to work with it.
As long as it is sealed tight like on the outside walls of the houses or behind inside walls, under the floors it is fine, but it's same poisoning as fiberglass when exposed to free air where people are living
Knauf lately introduced some kind of eco rockwool produced in totally diffrent technology where the small particles are glued with some kind of natural technic and their particles are not floating in the air, at least many times less than in typical rockwool. Knauf's policy is they sell it in the same price as regular rockwool they offer so more people would afford this safer rockwool.
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no, you are right, rockwool have sharp dust particles
clothing doesnt
but then, its likely to contain toxic chemicals in the fibers that pollute the air you breathe, and get into your lungs, and enters your blood even faster
lately it have become known that many of these materials can evaporate and polute your environment, as long a they are present in the room
I suppose it could be the same for the open cell foam, even if it appears completely harmless
Some good reading regarding the various materials being discussed here. At least some of you will be surprised.
The Comparative Safety of Rockwool, Fiberglass, and Organic Fibers (a review) - Gearslutz.com
The Comparative Safety of Rockwool, Fiberglass, and Organic Fibers (a review) - Gearslutz.com
ported. I'll just wont put any if it doesnt change anything.
About the bracing. any example of bracing I should use?
do I need a lot of bracing or maybe just one off centered with about 35% of whole in it?
You should use a fair amount of bracing for the bass cabs but if you've already built your boxes and installed the ports, then doing so is going to change your tuning and raise your f3.
Do some modelling first on the volume of bracing you can use and the degree you can lengthen your ports before making any changes.
Sealed boxes are stuffed differently then ported boxes and yes it helps especially if your ports are in the front. For your cabs, you just want to line the walls making sure you leave the airway to the port open.
Do some modelling first on the volume of bracing you can use and the degree you can lengthen your ports before making any changes.
Sealed boxes are stuffed differently then ported boxes and yes it helps especially if your ports are in the front. For your cabs, you just want to line the walls making sure you leave the airway to the port open.
Oops, meant to also add this kink. It's a very good read even tho he's talking about a sealed cab. Start at the top.
Loudspeaker construction
Loudspeaker construction
Ive been using the ultra-touch denim with VERY good results, sucks up mids and highs like a vaccuum and lets the bass do it's thing! Very happy with this product and no scratchy fibers!
Larry
Larry
Rockwool or fiberglass can be stuffed into some pillowcases to avoid the dust. Some might even use it as a way to involve the mrs. in the project costomizing the pillowcases.🙄
yeah I know, this is a big problem. Is there a way around this? I cannot change my bass cabinet, I can only change the ports tuning by buying new ones but redoing the box is out of the question... Is there some basic bracing I could do that wouldnt affect my tuning and cabinet volume?
Yes, using 1" x 2" wood is fine too, but if you can figure out a way to lengthen your ports a little, the tuning should stay about the same when you drop the volume when you add a more bracing. Play with the modelling and figure out what your acceptable limits are here.
Then epoxy and right angles might be your friend.......
Plus the glue for the braces. 🙂
Then epoxy and right angles might be your friend.......
Plus the glue for the braces. 🙂
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All of my cabinets have rounded corners inside, so no square edges, that stops the peaks and troughs like a guitar body and they are always filled with fibre glass roof insulation material.
Never had a complaint!
Never had a complaint!
Thought you meant something else. Not exactly sure what metal T-profiles are?
I was thinking of 1 x 2 wood pieces crossing at right angles,like a "+" sign, front to back and side to side. Glue them together at the intersection where they overlap.
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