Simplified REW Setup and Use (USB Mic & HDMI Connection) Including Measurement Techniques and How To Interpret Graphs - Page 376 - AVS Forum
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post #11251 of 11253 Old Today, 03:57 PM
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Originally Posted by HDgaming42 View Post
But where does it lie?

The only thing that agrees with my AVR is this RTA method, which makes no sense as it is using the same tone generator in REW that doesn't agree with my AVR...
A possible answer, based on your earlier frequency response, is the variation in levels across the range. You have 10dB from 45 to 30Hz for example. Perhaps you should eq first and then revisit to avoid chasing ghosts.
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post #11252 of 11253 Old Today, 04:27 PM
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Originally Posted by 3ll3d00d View Post
A possible answer, based on your earlier frequency response, is the variation in levels across the range. You have 10dB from 45 to 30Hz for example. Perhaps you should eq first and then revisit to avoid chasing ghosts.
An astute observation. Thank you for taking the time to go back and peruse the mountain of data I've collected to offer this explanation.

Judging by how a non-averaged RTA was entirely unworkable, I suspect, like you're suggesting, the disparities I have in the bottom end are what is responsible for the variation I see between calibration methods.

I will stick with the AVR settings for now and continue down the (long twisting) path toward home theater nirvana.

As for the Mackie monitors, if I never intend on running them at reference levels (the room is a shoe box, and that would likely deafen or kill the occupants) could I get away with simply leaving them at "normal"? From the numbers you (re)provided, this seems reasonable to me...
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post #11253 of 11253 Old Today, 04:54 PM
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I have a question about room treatments. As I mentioned previously, I didn't get around to canceling my order for the mineral wool boards. I have a case of 6 Roxul Rockboard 80, and another case of 6 Roxul Rockboard 60 on their way now. The 80 is 8 lb/ft3 (equivalent to OC 705), and the 60 is 6 lb/ft3 (equivalent to OC 730). I was planning to create two 6" thick bass traps using the Rockboard 80. Do you guys have a recommendation of what I should do with the 60? Should I build 2 less dense bass traps, or should I build some broadband absorbers? If I go for broadband absorbers, should I go for six 2" thick or three 4" thick panels.

Also, the back wall near where the sub is set up rattles quite a bit when things dig really deep (think the skadoosh scene in Kung-Fu Panda). Will placing an absorber back there help with the rattling?
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