AustinJerry's Set-Up - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 29Likes
 
Thread Tools
Old 10-21-2013, 07:14 AM - Thread Starter
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 15,630
Mentioned: 177 Post(s)
Tagged: 1 Thread(s)
Quoted: 7122 Post(s)
Liked: 3960
The purpose of this thread is to document my listening room, equipment, and the listening room's audio performance.  It is not intended for feedback, although if you have any questions, I will be happy to answer them.

Equipment List 

Listening Room Layout and Pictures
 
Note: Layout is not to scale.

Room Treatments:
 
2'x4' Bass Traps (26 total, 4 RealTraps Mini-Traps, 20 GIK 244 Bass Traps, 2 GIK Monster Bass Traps)
5 GIK 244 bass traps have scatter plates (two each on side wall 1st reflection points, and one in rear corner)
2'x4' Full-Spectrum wall panels (2 total, GIK 242 Panels)
Attached Thumbnails
Click image for larger version

Name:	Speaker Placement Dec 2014.jpg
Views:	62
Size:	38.6 KB
ID:	2006041   Click image for larger version

Name:	IMG_0345.jpg
Views:	58
Size:	160.0 KB
ID:	2006049   Click image for larger version

Name:	IMG_0346.jpg
Views:	54
Size:	162.4 KB
ID:	2006057   Click image for larger version

Name:	IMG_0347.jpg
Views:	53
Size:	163.9 KB
ID:	2006065   Click image for larger version

Name:	IMG_0348.jpg
Views:	54
Size:	164.0 KB
ID:	2006073  

Click image for larger version

Name:	IMG_0349.jpg
Views:	58
Size:	114.6 KB
ID:	2006081   Click image for larger version

Name:	IMG_0350.jpg
Views:	51
Size:	100.8 KB
ID:	2006097   Click image for larger version

Name:	IMG_0351.jpg
Views:	53
Size:	141.4 KB
ID:	2006121   Click image for larger version

Name:	IMG_0353.JPG
Views:	52
Size:	292.7 KB
ID:	2006129   Click image for larger version

Name:	IMG_0354.JPG
Views:	53
Size:	349.9 KB
ID:	2006137  

Click image for larger version

Name:	IMG_0355.JPG
Views:	56
Size:	318.6 KB
ID:	2006145   Click image for larger version

Name:	IMG_0356.jpg
Views:	54
Size:	176.4 KB
ID:	2006153   Click image for larger version

Name:	IMG_0358.jpg
Views:	49
Size:	163.1 KB
ID:	2006169   Click image for larger version

Name:	IMG_0359.jpg
Views:	47
Size:	177.5 KB
ID:	2006177   Click image for larger version

Name:	IMG_0360.jpg
Views:	48
Size:	164.4 KB
ID:	2006185  

Click image for larger version

Name:	IMG_0361.jpg
Views:	47
Size:	128.2 KB
ID:	2006193   Click image for larger version

Name:	IMG_0362.jpg
Views:	47
Size:	175.4 KB
ID:	2006201   Click image for larger version

Name:	IMG_1051.jpg
Views:	62
Size:	197.0 KB
ID:	2006209   Click image for larger version

Name:	IMG_1052.jpg
Views:	55
Size:	155.4 KB
ID:	2006217   Click image for larger version

Name:	IMG_1053.jpg
Views:	65
Size:	148.0 KB
ID:	2006225  

Click image for larger version

Name:	IMG_1055.jpg
Views:	60
Size:	134.2 KB
ID:	2006233   Click image for larger version

Name:	IMG_1056.jpg
Views:	58
Size:	165.1 KB
ID:	2006241  
darthray, BobDV, Spazdoc and 5 others like this.

Last edited by AustinJerry; 03-04-2017 at 12:34 PM.
AustinJerry is online now  
Sponsored Links
Advertisement
 
Old 10-21-2013, 07:14 AM - Thread Starter
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 15,630
Mentioned: 177 Post(s)
Tagged: 1 Thread(s)
Quoted: 7122 Post(s)
Liked: 3960
Equipment List
 
Speakers (7.1 configuration) - see attachment
 
 
 
Marantz 8802A
MiniDSP DDRC-88A with Dirac Live, with BM Plug-in
MiniDSP 2x4 balanced
ATI AT527NC Class D Power Amp
Oppo UDP-203 UHD/HDR
DirecTV HR-24 (2)
DirecTV AM-21 OTA
AppleTV 3
Sony XBR75X940D UHD/HDR Flat Panel
Sanus LL22-B1 wall mount
Sony FMP-X10 4K Media Player
Darbee Vision DVP-5000S
Sonos Connect (ZP90) with Wyred4Sound Modification
Wyred4Sound Remedy (Sonos ZP90 Re-clocker)

 
How I spent my AV budget - see attachment
 
Attached Thumbnails
Click image for larger version

Name:	Speaker List.JPG
Views:	38
Size:	34.3 KB
ID:	2006249   Click image for larger version

Name:	How I spent my AV budget.JPG
Views:	39
Size:	27.8 KB
ID:	2006257  

Last edited by AustinJerry; 03-04-2017 at 12:38 PM.
AustinJerry is online now  
Old 10-21-2013, 07:14 AM - Thread Starter
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 15,630
Mentioned: 177 Post(s)
Tagged: 1 Thread(s)
Quoted: 7122 Post(s)
Liked: 3960
Room Response Characteristics (updated March 2017)
 
Measured using REW 5.019 beta 3, UMIK-1 USB mic.  Noise floor measured using RTA is 50dB.

Room correction is Dirac Live using MiniDSP DDRC-88A with bass management plug-in.
 
Attached Thumbnails
Click image for larger version

Name:	Center.jpg
Views:	31
Size:	53.4 KB
ID:	2006273   Click image for larger version

Name:	Left.jpg
Views:	27
Size:	52.5 KB
ID:	2006297   Click image for larger version

Name:	Right.jpg
Views:	28
Size:	53.8 KB
ID:	2006305   Click image for larger version

Name:	ETC Center.jpg
Views:	26
Size:	87.9 KB
ID:	2006313   Click image for larger version

Name:	ETC Left.jpg
Views:	27
Size:	88.2 KB
ID:	2006321  

Click image for larger version

Name:	ETC Right.jpg
Views:	25
Size:	93.4 KB
ID:	2006329   Click image for larger version

Name:	Water Center.jpg
Views:	26
Size:	121.8 KB
ID:	2006337   Click image for larger version

Name:	Water left.jpg
Views:	24
Size:	150.7 KB
ID:	2006345   Click image for larger version

Name:	Water Right.jpg
Views:	22
Size:	143.7 KB
ID:	2006353   Click image for larger version

Name:	Subs.jpg
Views:	25
Size:	41.9 KB
ID:	2006401  

Click image for larger version

Name:	LR.JPG
Views:	25
Size:	118.5 KB
ID:	2006409   Click image for larger version

Name:	C+Surr.JPG
Views:	25
Size:	126.7 KB
ID:	2006417   Click image for larger version

Name:	Surr Back.JPG
Views:	23
Size:	120.5 KB
ID:	2006425   Click image for larger version

Name:	Subs1.JPG
Views:	23
Size:	102.3 KB
ID:	2006433  
citsur86 and johnnymacIII like this.

Last edited by AustinJerry; 03-04-2017 at 12:57 PM.
AustinJerry is online now  
 
Old 10-21-2013, 07:14 AM - Thread Starter
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 15,630
Mentioned: 177 Post(s)
Tagged: 1 Thread(s)
Quoted: 7122 Post(s)
Liked: 3960
Analysis - Benefits of Multiple Subwoofers
 
The purpose of this post is to show the interaction of multiple subs in the listening environment, and how careful placement and tuning can result in a significant improvement in bass response.  The subs used in this analysis are four Hsu Research ULS-15 sealed subs.  The subs are placed in the listening room as per the diagram in the first post in this thread.  The two front subs are at the 1/4 and 3/4 spots along the front wall, and the two rear subs are collocated at approximately the center of the back wall.  The two front subs are equidistant from the MLP, and are connected to the sub1 input on a MultEQ XT32 AVR with Sub EQ HT.  The two rear subs are also approximately equidistant from the MLP, on the Sub2 input on the AVR.  The two front subs are gain-matched to each other, and the two rear subs are gain-matched to each other.  However, the level of the rear subs is 5dB lower than the two front subs, because they are significantly closer to the MLP.
 
The measurement of the subs independent of each other, and as front and rear pairs, reveals that the in-room response (without room correction) is not very smooth.
 
Individual subs:
 

 

 

 

 
Sub Pairs:
 

 

 
However, when all fours subs are driven at the same time, we start to see advantages in the summed response:
 

 
And Audyssey room correction puts the final smoothing on the response:
 

 
And finally, combined response including center channel:
 

 
This analysis clearly shows the benefits of multiple subs in the listening environment.

To add some historical perspective, here is what the bass response looked like in October 2011, when I had only two subs, and no bass treatments in the listening room.

Click image for larger version

Name:	2011-oct bass before treatments.jpg
Views:	12
Size:	54.5 KB
ID:	2061809

As you can see, it has been a long journey, and a successful one.
 
Alan P, ahblaza, mthomas47 and 4 others like this.

Last edited by AustinJerry; 04-01-2017 at 12:34 PM.
AustinJerry is online now  
Old 10-21-2013, 07:15 AM - Thread Starter
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 15,630
Mentioned: 177 Post(s)
Tagged: 1 Thread(s)
Quoted: 7122 Post(s)
Liked: 3960

<Reserved>

Marc Alexander likes this.
AustinJerry is online now  
Old 10-21-2013, 07:15 AM - Thread Starter
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 15,630
Mentioned: 177 Post(s)
Tagged: 1 Thread(s)
Quoted: 7122 Post(s)
Liked: 3960
AustinJerry is online now  
Old 11-01-2013, 01:40 PM
AVS Forum Addicted Member
 
kbarnes701's Avatar
 
Join Date: Jan 2008
Location: Main Listening Positon
Posts: 25,892
Mentioned: 82 Post(s)
Tagged: 0 Thread(s)
Quoted: 6780 Post(s)
Liked: 5138
kbarnes701 is offline  
Old 11-09-2013, 01:31 PM
Advanced Member
 
7channelfreak's Avatar
 
Join Date: Jan 2012
Location: North Houston
Posts: 987
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 290 Post(s)
Liked: 192
That has to sound incredible.
7channelfreak is offline  
Old 11-19-2013, 11:32 AM
AVS Forum Special Member
 
Roger Dressler's Avatar
 
Join Date: Jul 2000
Location: Oregon
Posts: 9,728
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 1545 Post(s)
Liked: 733
Hi Jerry,

Just curious, why do you have the L/R at +/- 45 degrees? That's pretty wide (usually 30 is plenty). Considering you also have wide speakers (at +/- 65) it does not seem you'd be lacking for width cues.

Deadwood Atmos theater [HTOM]
AV7702 Atmos 7.4.4, SSP-800 PLIIx 7.4
Aerial Acoustics 7B/CC3B fronts, B&W CWM8180 surrounds, Tannoy Di6 DC heights, Hsu ULS-15 subs
Roger Dressler is offline  
Old 11-19-2013, 12:50 PM - Thread Starter
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 15,630
Mentioned: 177 Post(s)
Tagged: 1 Thread(s)
Quoted: 7122 Post(s)
Liked: 3960
Quote:
Originally Posted by Roger Dressler View Post

Hi Jerry,

Just curious, why do you have the L/R at +/- 45 degrees? That's pretty wide (usually 30 is plenty). Considering you also have wide speakers (at +/- 65) it does not seem you'd be lacking for width cues.

 

Roger,

 

 

Perhaps you are miss-interpreting my drawing.

 

 

The front speakers are at an angle of 27.3 degrees, and the Wides are at an angle of 51.2 degrees, which is actually a narrower angle than the recommendation.

AustinJerry is online now  
Old 11-19-2013, 02:04 PM
AVS Forum Special Member
 
Roger Dressler's Avatar
 
Join Date: Jul 2000
Location: Oregon
Posts: 9,728
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 1545 Post(s)
Liked: 733
Quote:
Originally Posted by AustinJerry View Post

Roger,

Perhaps you are miss-interpreting my drawing.
Oops, yes, I did not notice the angles! I just plopped it into Corel and measured them. The drawing is, as they say, "not to scale." wink.gif

Sorry for my confusion.

Deadwood Atmos theater [HTOM]
AV7702 Atmos 7.4.4, SSP-800 PLIIx 7.4
Aerial Acoustics 7B/CC3B fronts, B&W CWM8180 surrounds, Tannoy Di6 DC heights, Hsu ULS-15 subs
Roger Dressler is offline  
Old 11-19-2013, 03:01 PM - Thread Starter
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 15,630
Mentioned: 177 Post(s)
Tagged: 1 Thread(s)
Quoted: 7122 Post(s)
Liked: 3960

No harm done.  It is just a PowerPoint drawing, so no way to draw it to scale.  I used to use AutoCAD when I was working, but don't want to spend the money for a personal license.  If you know of a good consumer-class (read:  inexpensive or free) CAD program, I would welcome the recommendation.  In the meantime, I determine angles by using a spreadsheet that calculates the angles from the distances of the legs of the triangle.

AustinJerry is online now  
Old 11-19-2013, 05:28 PM
AVS Forum Special Member
 
Roger Dressler's Avatar
 
Join Date: Jul 2000
Location: Oregon
Posts: 9,728
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 1545 Post(s)
Liked: 733
Quote:
Originally Posted by AustinJerry View Post

No harm done.  It is just a PowerPoint drawing, so no way to draw it to scale.  I used to use AutoCAD when I was working, but don't want to spend the money for a personal license.  If you know of a good consumer-class (read:  inexpensive or free) CAD program, I would welcome the recommendation.  In the meantime, I determine angles by using a spreadsheet that calculates the angles from the distances of the legs of the triangle.
If you like to have the option for 3D rendering, try SweetHome3D. I found it much easier than Sketchup.

attachment.php?attachmentid=167670&amp;d=1266632936

Deadwood Atmos theater [HTOM]
AV7702 Atmos 7.4.4, SSP-800 PLIIx 7.4
Aerial Acoustics 7B/CC3B fronts, B&W CWM8180 surrounds, Tannoy Di6 DC heights, Hsu ULS-15 subs
Roger Dressler is offline  
Old 11-20-2013, 10:00 PM
AVS Forum Special Member
 
Roger Dressler's Avatar
 
Join Date: Jul 2000
Location: Oregon
Posts: 9,728
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 1545 Post(s)
Liked: 733
Here's your room translated to SweetHome3D



The project's file: Jerrys Room.zip 144k .zip file
Attached Files
File Type: zip Jerrys Room.zip (143.6 KB, 217 views)
jm10 likes this.

Deadwood Atmos theater [HTOM]
AV7702 Atmos 7.4.4, SSP-800 PLIIx 7.4
Aerial Acoustics 7B/CC3B fronts, B&W CWM8180 surrounds, Tannoy Di6 DC heights, Hsu ULS-15 subs
Roger Dressler is offline  
Old 11-21-2013, 05:46 AM - Thread Starter
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 15,630
Mentioned: 177 Post(s)
Tagged: 1 Thread(s)
Quoted: 7122 Post(s)
Liked: 3960

Wow, I am impressed.  I need to download that software.  Thanks!

AustinJerry is online now  
Old 12-04-2013, 10:52 AM
Member
 
marcfarmen's Avatar
 
Join Date: Dec 2013
Location: Austin, TX
Posts: 19
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 18

That is great. I am building mine now in Sweet Home it rocks!

marcfarmen is offline  
Old 12-31-2013, 12:48 PM
Wireless member
 
pepar's Avatar
 
Join Date: Jul 2002
Location: On the beach in Quintana Roo
Posts: 26,212
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 1029 Post(s)
Liked: 535
Quote:
Originally Posted by Roger Dressler View Post

Here's your room translated to SweetHome3D



The project's file: Jerrys Room.zip 144k .zip file

Quote:
Originally Posted by AustinJerry View Post

Wow, I am impressed.  I need to download that software.  Thanks!

I am IMPRESSED as well!!! Sweet, indeed!

"The future is already here, it's just not evenly distributed." W. Gibson

"I like the future, I'm in it." F. Theater
pepar is offline  
Old 12-31-2013, 02:43 PM - Thread Starter
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 15,630
Mentioned: 177 Post(s)
Tagged: 1 Thread(s)
Quoted: 7122 Post(s)
Liked: 3960
Yes, I still owe it to Roger to learn how to use that software. So many things on the to-do list!
AustinJerry is online now  
Old 01-23-2014, 01:43 PM
Member
 
marcfarmen's Avatar
 
Join Date: Dec 2013
Location: Austin, TX
Posts: 19
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 18

I have finished my drawings. Even put my wife in one. Take a look. 

 

I have posted the source files as well.

 

http://files.snowsoftware.com/files.zip 

 

 

 

 

 

 

Frohlich, Spanglo, NODES and 1 others like this.
marcfarmen is offline  
Old 01-30-2014, 05:50 AM
Member
 
dRwOOD73's Avatar
 
Join Date: Jan 2012
Location: Southeast PA
Posts: 183
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Liked: 16
Great Looking (& sounding ) room, came here from the link in your sig & your suggestion in the REW thread about a month ago - trying to get caught up as we speak so I may join the discussion.. just started measuring a few weeks ago after a lot of lurking & learning..

dRwOOD73 is offline  
Old 03-18-2014, 07:22 PM
Newbie
 
ai_0301's Avatar
 
Join Date: Mar 2011
Location: Singapore
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Very good set-up ! I like it.
ai_0301 is offline  
Old 05-22-2014, 02:54 PM
AVS Forum Special Member
 
Spanglo's Avatar
 
Join Date: Jun 2007
Location: San Diego
Posts: 2,261
Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 491 Post(s)
Liked: 436
Great setup and seeing those graphs is very helpful and encouraging. Nice to see such good response after all the hard work you put in.

Big thanks for recommending the sweethome3d program... what great software. I was able to model the before and after of my room in no time. So much better than google sketch. Thanks again.

 


PSN - Hapi_Kilmore_v3
My 6.4.4 Living Room HT
Spanglo is offline  
Old 06-04-2014, 09:02 AM
AVS Forum Special Member
 
hatlesschimp's Avatar
 
Join Date: Nov 2012
Posts: 1,242
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 478 Post(s)
Liked: 504
Hey Austin, Nice work with the speakers! Just wondering if you can help me out with what you think is the best settings for 3D blu rays on the Sony x900.

Cheers Mate!!!
hatlesschimp is offline  
Old 06-10-2014, 08:52 AM
Member
 
Schlemstar's Avatar
 
Join Date: Mar 2013
Location: Indiana
Posts: 140
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 28 Post(s)
Liked: 24
Quote:
Originally Posted by Roger Dressler View Post

If you like to have the option for 3D rendering, try SweetHome3D. I found it much easier than Sketchup.

attachment.php?attachmentid=167670&amp;d=1266632936

Going to have to try this software as I have gotten some comments about my build thread not having a layout. Thanks!
Schlemstar is offline  
Old 01-23-2015, 10:51 PM
 
SherazNJ's Avatar
 
Join Date: Nov 2012
Location: New Jersey
Posts: 2,048
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1210 Post(s)
Liked: 144
Quote:
Originally Posted by AustinJerry View Post
Yes, I still owe it to Roger to learn how to use that software. So many things on the to-do list!
Just saw your dedicated thread now. Very nice. Do you by any chance have REW graphs (frequency/ETC/...) before/after treatment to show the difference they brought?

Also where in the pics you have following placed
2'x4' Full-Spectrum wall panels (5 total, GIK 242 Panels)
2 GIK Monster Bass Traps

thx.

Last edited by SherazNJ; 01-23-2015 at 11:01 PM.
SherazNJ is offline  
Old 01-27-2015, 02:16 PM
AVS Forum Special Member
 
steve1971's Avatar
 
Join Date: Jul 2008
Location: Saint Paul, Minnesota.
Posts: 2,714
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 503 Post(s)
Liked: 436
Damn AustinJerry that is one beautiful setup you have. I would have bought the X900A myself but went with its 55inch sibling the 55W900A which like the X900A is a beautiful tv. IMHO the 2 best tv's made by Sony. Again though very nice setup.
steve1971 is offline  
Old 02-15-2015, 09:41 PM
Member
 
Spazdoc's Avatar
 
Join Date: Nov 2010
Location: Winnetka, IL
Posts: 87
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 49 Post(s)
Liked: 14
Beautiful set up.

I was wondering if you might be able to share your process in choosing acoustic treatments. I am in the early stages of planning acoustic treatments, and am trying to figure out what I need.

Did you try to place as many bass traps as you could, given that you have 4 potent subs, or did you follow the REW measurements, or something else?
Spazdoc is offline  
Old 02-16-2015, 05:13 AM - Thread Starter
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 15,630
Mentioned: 177 Post(s)
Tagged: 1 Thread(s)
Quoted: 7122 Post(s)
Liked: 3960
Quote:
Originally Posted by Spazdoc View Post
Beautiful set up.

I was wondering if you might be able to share your process in choosing acoustic treatments. I am in the early stages of planning acoustic treatments, and am trying to figure out what I need.

Did you try to place as many bass traps as you could, given that you have 4 potent subs, or did you follow the REW measurements, or something else?
Treatments accomplish two things--they reduce bass resonance, and they tame reflections in the spectral region. The guidelines for treatments to control bass resonance are to 1) choose treatments designed specifically for the longer hass frequencies (which are generally thicker), and 2) to place the treatments in the most effective locations, at the intersection of multiple surfaces, e,g. room corners, wall to ceiling, etc. Also, the more traps, the more effective the resonance control.

Treatments for spectral reflections are different. The treatments themselves must be full-spectrum treatments, and they are placed at spots specifically associated with reflections. You can analyze room reflections using the REW ETC measurement.

There are threads here on AVS that provide more specific guidance on effective room treatment.
Spazdoc likes this.
AustinJerry is online now  
Old 02-16-2015, 08:27 AM
Member
 
Spazdoc's Avatar
 
Join Date: Nov 2010
Location: Winnetka, IL
Posts: 87
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 49 Post(s)
Liked: 14
Quote:
Originally Posted by AustinJerry View Post

Treatments for spectral reflections are different. The treatments themselves must be full-spectrum treatments, and they are placed at spots specifically associated with reflections. You can analyze room reflections using the REW ETC measurement.

There are threads here on AVS that provide more specific guidance on effective room treatment.
Thanks. The trouble with many of the posts on here is that often the advice is specific for a that applicaiton, rather than unifying ideas. Although I have been reading up on hometheatershack, the guide that you have in your sig ( Getting Started with REW: A Step-by-Step Guide ) has been the most helpful and concise guide for using and understanding the REW I could find. Thank you very much for putting it together.
AustinJerry likes this.
Spazdoc is offline  
Old 04-01-2015, 10:46 PM
AVS Forum Club Gold
 
sdrucker's Avatar
 
Join Date: Feb 2006
Location: Chicago, IL
Posts: 3,134
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 770 Post(s)
Liked: 527
Jerry,
A technical question for you. To calculate the LF/RF speaker angles, did you do the following. Assuming adjacent right angle triangles at MLP on the chart in post #1 , did you compute:

Adjacent = 108"/2 = 54" (i.e. 1/2 the distance between your LF and RF speakers, assuming your center channel and MLP represents 0 degrees)
Hypotenuse = 108" (distance from center of LF to MLP)

Angle (360 degrees) = Inverse cosine of (54"/108")= 60
To put on a +/- 180 degrees scale, that becomes 60/2 = 30 degrees


Note that this is the physical angle, not complicated by things like differences in speaker level or calculation of electronic delays.

I think this is right, but just confirming to do some room brainstorming of my own.

Audio Gear: Trinnov Altitude 16/24, NAD M27 and Wyred4Sound MMC-7 amps
Video (early May): JVC RS600, Seymour 100" UF Screen, Lumagen Radiance Pro TBD
Misc.: Oppo 103, Oppo 203 UHD player, JRiver
Speakers: PSB Imagine T3 LCR, Imagine T Wides and Rears, T2 Side Surrounds
PSB Imagine XB Speakers (4), HSU ULS-15 Mk 2 subs (4) - 9.4.4

Last edited by sdrucker; 04-01-2015 at 11:02 PM.
sdrucker is online now  
Sponsored Links
Advertisement
 
 

Tags
Denon Avr 4520ci Receiver , Emotiva Xpa 3 Amplifier , Oppo Bdp 93 Blu Ray Player , Sonos , Sony Xbr 65x900a 65 Inch 1080p 120hz 3d Led 4k Ultra Hdtv , Darbeevision Darblet Hdmi Video Processor
Thread Tools


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off