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post #541 of 546 Old 02-19-2015, 08:35 PM
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Originally Posted by Peter M View Post
Yep ... the Q-Perf is quite expensive. Luckily there is a company here that makes it under licence so at least I saved on the transport costs. Here it is again from way up-thread ...



Cheers,
Interesting. Looks a lot like RPG BAD panels.

http://www.rpginc.com/product_BAD_Panels.cfm
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post #542 of 546 Old 02-20-2015, 11:37 AM
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And that is my confusion. You noted above that every panel had 2 inches of acoustic material in it and then placed some in front of other acoustic products??
The cavity was 2" deep. The board was 1". So I assume he had a full on bass trap with plastic over both sheets. A full on hd absorber with no plastic and 2 boards, and finally a hybrid where the plastic was in the middle. This was likely depending on if it was a first reflection point, rear wall, ceiling to wall border... Just guessing
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post #543 of 546 Old 02-22-2015, 07:00 PM - Thread Starter
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Originally Posted by audioguy View Post
And that is my confusion. You noted above that every panel had 2 inches of acoustic material in it and then placed some in front of other acoustic products??
Chuck,

All my 2" panels have plain drywall directly behind them.

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post #544 of 546 Old 02-22-2015, 07:03 PM - Thread Starter
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Interesting. Looks a lot like RPG BAD panels.

http://www.rpginc.com/product_BAD_Panels.cfm
Chuck,

Yes they look very similar, however I believe the BAD panels have a perforated board on the front, whereas the Q-Perf uses perforated 1" fiberglass.

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post #545 of 546 Old 02-22-2015, 07:06 PM - Thread Starter
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Originally Posted by roccoleach View Post
The cavity was 2" deep. The board was 1". So I assume he had a full on bass trap with plastic over both sheets. A full on hd absorber with no plastic and 2 boards, and finally a hybrid where the plastic was in the middle. This was likely depending on if it was a first reflection point, rear wall, ceiling to wall border... Just guessing
Yep, that pretty much sums it up. The only thing to add is that each of the 1" layers making up the 2" thick panels also had different density.

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post #546 of 546 Old Today, 03:50 AM
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Bump for an awesome build!

Spent a wonderful afternoon at Peter's place listening to all sorts of goodness. This was the first time I'd heard the room/system after full calibration. It is all first class as you'd expect, but the thing I found astounding was the quality of the surround experience post calibration, really truly special. Hats off to Jamie for the calibration work, awesome stuff.

Peter the Greek

Downunder Theatre MkII
Glacial paced construction Since 2009
"what is worth knowing is difficult to learn"
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