Pandaman617 Senior Audioholic Apr 26, 2019 582 0 18 40 Westfield, Massachusetts Nov 4, 2021 #1 I recently altered my room a bit so I could make my 4 subs as symmetrical as possible and have my LRC all at ear level in regards to the tweeters. Speaker wise I was very pleased but as you can see from my first 3 point REW sub measurement performance left much to be desired. This morning I used super position and ensured all 4 subs are outputting around 72-73dB for a sum of 80dB total output and with some minor placement tweaks made significant improvements both in terms of measurements and audible performance The 4 subs are 1) Mirage BPS-400 dual 12” sealed 2) Atlantic Technology 372 THX 15” sealed 3) Atlantic Technology 272 THX 12” sealed X 2 controlled by a MiniDSP 2x4HD and measured with a UMIK-2 via a 2021 MacBook Pro and REW. My first measurements My second series of measurements after placement tweaks Average of all 6 points with no PEQ applied yet. My room is lightly treated with a series of Auralex T-fussors on the ceiling, 2D diffusors on the side walls and a pair of 2’x2’x2’ bass traps in each front corner.
I recently altered my room a bit so I could make my 4 subs as symmetrical as possible and have my LRC all at ear level in regards to the tweeters. Speaker wise I was very pleased but as you can see from my first 3 point REW sub measurement performance left much to be desired. This morning I used super position and ensured all 4 subs are outputting around 72-73dB for a sum of 80dB total output and with some minor placement tweaks made significant improvements both in terms of measurements and audible performance The 4 subs are 1) Mirage BPS-400 dual 12” sealed 2) Atlantic Technology 372 THX 15” sealed 3) Atlantic Technology 272 THX 12” sealed X 2 controlled by a MiniDSP 2x4HD and measured with a UMIK-2 via a 2021 MacBook Pro and REW. My first measurements My second series of measurements after placement tweaks Average of all 6 points with no PEQ applied yet. My room is lightly treated with a series of Auralex T-fussors on the ceiling, 2D diffusors on the side walls and a pair of 2’x2’x2’ bass traps in each front corner.
L latapx Audioholic Intern Sep 23, 2021 36 0 6 50 Nov 4, 2021 #2 Try reducing the scale...the "average" plot goes from -30db to over 90 db...try 100 to 40...it would apply less "smoothing" and show the true colors of what is going on.
Try reducing the scale...the "average" plot goes from -30db to over 90 db...try 100 to 40...it would apply less "smoothing" and show the true colors of what is going on.
William Lemmerhirt Audioholic Overlord Jan 8, 2017 12,005 0 113 52 Nov 4, 2021 #3 latapx said: Try reducing the scale...the "average" plot goes from -30db to over 90 db...try 100 to 40...it would apply less "smoothing" and show the true colors of what is going on. Click to expand... That’s what I was gonna say! Usually the vertical window limits we use are 45-105 with no smoothing. It’s more painful to look at, but is more representative of what’s happening.
latapx said: Try reducing the scale...the "average" plot goes from -30db to over 90 db...try 100 to 40...it would apply less "smoothing" and show the true colors of what is going on. Click to expand... That’s what I was gonna say! Usually the vertical window limits we use are 45-105 with no smoothing. It’s more painful to look at, but is more representative of what’s happening.
Pandaman617 Senior Audioholic Apr 26, 2019 582 0 18 40 Westfield, Massachusetts Nov 4, 2021 #4 I had no idea about that! Thanks for the tips guys
William Lemmerhirt Audioholic Overlord Jan 8, 2017 12,005 0 113 52 Nov 4, 2021 #5 Pandaman617 said: I had no idea about that! Thanks for the tips guys Click to expand... Roger that. I was gonna say too. It looks pretty good.
Pandaman617 said: I had no idea about that! Thanks for the tips guys Click to expand... Roger that. I was gonna say too. It looks pretty good.
L latapx Audioholic Intern Sep 23, 2021 36 0 6 50 Nov 4, 2021 #6 Pandaman617 said: I had no idea about that! Thanks for the tips guys Click to expand... Please post the results on the revised scale!!
Pandaman617 said: I had no idea about that! Thanks for the tips guys Click to expand... Please post the results on the revised scale!!
Pandaman617 Senior Audioholic Apr 26, 2019 582 0 18 40 Westfield, Massachusetts Nov 4, 2021 #7 They’ll be up tonight when i get out of work! Reactions: latapx
Pogre Audioholic Slumlord Jul 29, 2016 16,146 0 113 56 Mesa, Arizona Nov 4, 2021 #8 It really does look pretty good, especially with no EQ in the mix. But yeah, like the guys said a smaller window will show potential issues in better resolution, if there are any. Reactions: Pandaman617
It really does look pretty good, especially with no EQ in the mix. But yeah, like the guys said a smaller window will show potential issues in better resolution, if there are any.
Pandaman617 Senior Audioholic Apr 26, 2019 582 0 18 40 Westfield, Massachusetts Nov 4, 2021 #9 New scale with no PEQ
Pandaman617 Senior Audioholic Apr 26, 2019 582 0 18 40 Westfield, Massachusetts Nov 4, 2021 #10 New scale with PEQ applied but no Audyssey XT32, just REW filters. Reactions: latapx
Pandaman617 Senior Audioholic Apr 26, 2019 582 0 18 40 Westfield, Massachusetts Nov 4, 2021 #11 Thank you guys so much for the info about the scale! I’ve been using REW for about a year now and had NO IDEA about that feature!
Thank you guys so much for the info about the scale! I’ve been using REW for about a year now and had NO IDEA about that feature!
William Lemmerhirt Audioholic Overlord Jan 8, 2017 12,005 0 113 52 Nov 4, 2021 #12 Still looks really good! Not surprised, but now it’s easy to compare notes with others. Well done. Reactions: Pogre and Pandaman617
Pandaman617 Senior Audioholic Apr 26, 2019 582 0 18 40 Westfield, Massachusetts Nov 4, 2021 #13 William Lemmerhirt said: Still looks really good! Not surprised, but now it’s easy to compare notes with others. Well done. Click to expand... Thanks man!
William Lemmerhirt said: Still looks really good! Not surprised, but now it’s easy to compare notes with others. Well done. Click to expand... Thanks man!
Pogre Audioholic Slumlord Jul 29, 2016 16,146 0 113 56 Mesa, Arizona Nov 4, 2021 #14 That does look very good! I felt like I got another sub upgrade when I got mine dialed in. It makes an audible difference, huh?
That does look very good! I felt like I got another sub upgrade when I got mine dialed in. It makes an audible difference, huh?
Pandaman617 Senior Audioholic Apr 26, 2019 582 0 18 40 Westfield, Massachusetts Nov 4, 2021 #15 Pogre said: That does look very good! I felt like I got another sub upgrade when I got mine dialed in. It makes an audible difference, huh? Click to expand... Oh absolutely! I had 6 subs at one point and I’ve learned that in my relatively small section of an L shaped room it didn’t do much to have 2 more. Having 4 that are dialed in really adds that impactful but clean bass. Before I did this I thought my low end response was good but felt like it was boomy and watching Rogue One tonight on UHD Blu-Ray it’s so much tighter and audibly more enjoyable. Reactions: latapx and Pogre
Pogre said: That does look very good! I felt like I got another sub upgrade when I got mine dialed in. It makes an audible difference, huh? Click to expand... Oh absolutely! I had 6 subs at one point and I’ve learned that in my relatively small section of an L shaped room it didn’t do much to have 2 more. Having 4 that are dialed in really adds that impactful but clean bass. Before I did this I thought my low end response was good but felt like it was boomy and watching Rogue One tonight on UHD Blu-Ray it’s so much tighter and audibly more enjoyable.
