What Insulation for 2-Way Cabinet?

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Brian Murphy

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Jun 18, 2012
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I have an old EV 2-Way PA cabinet that unlike some other equipment I have is stock except that I removed the Fiberglass insulation.
It is a vented cab and I don't want to breath that garbage in.
I'm going to use it as a stage cab for my acoustic guitar.

I need an equal or better substitute for Fiberglass insulation?
I've read about the "Ultra Touch" but it comes in 3.5" thickness and in bales that are huge.

Suggestions?

Thanks,
Murph................
 
Re: What Insulation for 2-Way Cabinet?

Poly-fil is light and I wonder if it will act like fiberglass and fly out of the vents when the spk is used.
I did mention Ultra Touch. I was wondering if anyone used a different thickness than 3.5" or a different product. 3.5" seems a bit thick for a cab that's < 11" ID.

Thanks for the responses.
 
Re: What Insulation for 2-Way Cabinet?

Brian Murphy said:
I have an old EV 2-Way PA cabinet that unlike some other equipment I have is stock except that I removed the Fiberglass insulation.
It is a vented cab and I don't want to breath that garbage in.
I'm going to use it as a stage cab for my acoustic guitar.

I need an equal or better substitute for Fiberglass insulation?
I've read about the "Ultra Touch" but it comes in 3.5" thickness and in bales that are huge.

Suggestions?

Thanks,
Murph................
Click to expand...

In Australia we can get Tontine "Acoustisorb 2" (~32kg/m3) or "Acoustisorb 3" (~48kg/m3). It's polyester acoustic insulation that comes in sheets or rolls. It's well bonded - doesn't come apart - and very safe. I recently bought sheets of 100mm (4") to make acoustic panels for a conference room at work, and 25mm (1") for lining the speakers I'm building.

Searching USA sites, I haven't been able to find anything similar. Anyone else?

Cheers,
Michael
 
Re: What Insulation for 2-Way Cabinet?

Hi Michael....I have to tell you a cool story about a guy I met from Australia 25+ yrs ago when I was in Ireland. My wife felt ill and went to bed early. We were staying at a B+B in a small town. I spent about an hour talking with a gent who was a retired Exec on vacation. His "vacation" so far had lasted about 6 months and he had spent about $100K so far.
He told me that he met a girl in Ireland who was originally from the USA but married a man from Ireland. She had a passenger manifest for a British ship that sent Irish "prisoners" (which could have been almost anyone) to a penal colony in Au. She found that her Great, Great Grandfather was on the list. The Au gent looked at the list because he knew his relative had been in a similar situation and .....yep...his Great, Great Grandfather was on the exact same ship from Ireland to Au. What are the chances of that happening again? ! LOL

The Acoustisorb sounds interesting although I've never heard of it.
Thanks.
 
Re: What Insulation for 2-Way Cabinet?

Brian Murphy said:
Hi Michael....I have to tell you a cool story about a guy I met from Australia 25+ yrs ago when I was in Ireland. My wife felt ill and went to bed early. We were staying at a B+B in a small town. I spent about an hour talking with a gent who was a retired Exec on vacation. His "vacation" so far had lasted about 6 months and he had spent about $100K so far.
He told me that he met a girl in Ireland who was originally from the USA but married a man from Ireland. She had a passenger manifest for a British ship that sent Irish "prisoners" (which could have been almost anyone) to a penal colony in Au. She found that her Great, Great Grandfather was on the list. The Au gent looked at the list because he knew his relative had been in a similar situation and .....yep...his Great, Great Grandfather was on the exact same ship from Ireland to Au. What are the chances of that happening again? ! LOL

The Acoustisorb sounds interesting although I've never heard of it.
Thanks.
Click to expand...

Great story, thanks. You prompted me to do some searching. Turns out prisoners were still being relocated to AU as recently as the 1860's. (Oz was only "founded" in 1788 and after 100 years the population was just under 3 million.) My grandfather (of English parents but born in Ireland) relocated of his own accord. :razz:

I just spent another hour Googling for polyester or acrylic insulation in the USA. No luck I'm afraid.
 
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