FIRST POST ALERT
Hi all, I'm trying to make a speaker enclosure (full-range portable speaker, fully enclosed) using a small metal container (thin aluminum). In order to prevent the horrible sound of a metal enclosure, I'm trying to figure out the best type of dampening material to line the interior with. (I am in essence attempting to make an enclosure inside an enclosure so the outside still looks metal, but doesn't have all the negative sounds of a metal enclosure)
My goal is to find a material that can:
1. Have great acoustic/dampening qualities while being thin enough (1/4"-ish) so that it won't take up a ton of space inside my enclosure
2. Be poured into the enclosure as if it's a mold (poured/injected in as a liquid or semi-liquid and harden into a great-sounding enclosure.
3. Is relatively easy to work with and a decent bang for my buck (I'd like to make a few of these if it works...)
Does anyone know what type of materials I could use that would best accomplish this? (I was thinking an ABS-type plastic, rubberized material, concrete, foaming insulation, epoxy, silicone, etc???)
Hi all, I'm trying to make a speaker enclosure (full-range portable speaker, fully enclosed) using a small metal container (thin aluminum). In order to prevent the horrible sound of a metal enclosure, I'm trying to figure out the best type of dampening material to line the interior with. (I am in essence attempting to make an enclosure inside an enclosure so the outside still looks metal, but doesn't have all the negative sounds of a metal enclosure)
My goal is to find a material that can:
1. Have great acoustic/dampening qualities while being thin enough (1/4"-ish) so that it won't take up a ton of space inside my enclosure
2. Be poured into the enclosure as if it's a mold (poured/injected in as a liquid or semi-liquid and harden into a great-sounding enclosure.
3. Is relatively easy to work with and a decent bang for my buck (I'd like to make a few of these if it works...)
Does anyone know what type of materials I could use that would best accomplish this? (I was thinking an ABS-type plastic, rubberized material, concrete, foaming insulation, epoxy, silicone, etc???)
The aluminum enclosure might not be as bad as you think. Its resonances are likely quite high and unlikely to be excited by the driver.
But if needed i’d use the wayer based paint on damping material used on the insides of boats. I have a bucket downstairs to get a brand name if you’d like.
dave
But if needed i’d use the wayer based paint on damping material used on the insides of boats. I have a bucket downstairs to get a brand name if you’d like.
dave
Thanks planet10!
I'm guessing you're talking a rubberized-type paint that you can put on thick or use a couple coats?
I was worried about resonances so that's good news about aluminum. I was also worried about sound reflecting back out. However it is a small enclosure so I suppose there wouldn't be much space between a reflected wave and the original (not exactly that knowledgeable as it pertains to acoustic theory).
I'm guessing you're talking a rubberized-type paint that you can put on thick or use a couple coats?
I was worried about resonances so that's good news about aluminum. I was also worried about sound reflecting back out. However it is a small enclosure so I suppose there wouldn't be much space between a reflected wave and the original (not exactly that knowledgeable as it pertains to acoustic theory).
It is not rubber. It dries hard so damps & stiffens. Adding mass without stiffness takes you in the wrong direction IMO.
dave
dave
- Status
- Not open for further replies.