Author Topic: Isotherm acoustic panels  (Read 354 times)

Offline Rotten Johnny

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Re: Isotherm acoustic panels
« Reply #15 on: March 19, 2017, 03:25:07 PM »
Last time I bought it was just shy of R80/ 25mm sheet...that was many moons ago.
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Offline CAD

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Re: Isotherm acoustic panels
« Reply #16 on: March 19, 2017, 07:11:19 PM »
 :thinking:

I paid around R1700 for 10 x 50mm panels (including delivery)about 2 years ago
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Online reeman

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Re: Isotherm acoustic panels
« Reply #17 on: March 20, 2017, 07:14:13 AM »
This might be a stupid question but will u thermo work for HF aswell?

Offline Rotten Johnny

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Re: Isotherm acoustic panels
« Reply #18 on: March 20, 2017, 07:21:40 AM »
Yes, but get a lower density.
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Offline Rodney_gold

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Re: Isotherm acoustic panels
« Reply #19 on: March 20, 2017, 09:56:51 AM »
Rather diy tube traps than flat panels
https://www.avforums.co.za/index.php/topic,61205.0.html
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Offline Rick

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Re: Isotherm acoustic panels
« Reply #20 on: March 20, 2017, 11:20:52 AM »
Isotherm is not too bad actually, I just did my entire listening room floor to ceiling with acoustic panels with 50mm Isotherm.

For HF reflections it certainly did the trick.

Offline Rotten Johnny

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Re: Isotherm acoustic panels
« Reply #21 on: March 20, 2017, 11:29:30 AM »
^^^ and for LF it'll do nothing.
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Offline Timber_MG

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Re: Isotherm acoustic panels
« Reply #22 on: March 20, 2017, 11:55:23 AM »
Isotherm needs to be placed far from a wall for usable results and then preferably with a membrane or perf sheet.

Online reeman

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Re: Isotherm acoustic panels
« Reply #23 on: March 20, 2017, 02:41:07 PM »
Thanks guys.

I need it for for my HF ( mid, Tweeter )

I am going to build bass traps from u thermo 8 or something similar for the LF

Offline Timber_MG

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Re: Isotherm acoustic panels
« Reply #24 on: March 20, 2017, 05:15:57 PM »
Thanks guys.

I need it for for my HF ( mid, Tweeter )

I am going to build bass traps from u thermo 8 or something similar for the LF

To be sure, have you modeled the sabins of the absorption to get to where you want to be? It's somewhat rare to need specific HF/MF absorption that doesn't also extend a bit lower.

Offline reactor_sa

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Re: Isotherm acoustic panels
« Reply #25 on: March 20, 2017, 06:45:53 PM »
Isotherm is not too bad actually, I just did my entire listening room floor to ceiling with acoustic panels with 50mm Isotherm.

For HF reflections it certainly did the trick.
You only need to do a third of the surfaces, making sure first reflections are covered. Too much and it sounds like the inside of a vacuum.