I believe there was a Pendragon setup in Malaysia or Singapore that had the same alignment as your new configuration.
That individual mentioned he tried both positions and definitely preferred woofers on the inside, panels on the outside.
If you experience some loss of center-fill, try angling the Ribbon Panels slightly toward your seated position.
I believe this is the system to which you refer..

 
Do you mean Dato' Danon Han in Malaysia?
I believe that he owns Gryphon Kodo in his personal system. He also has some experience with Jadis electronics :

 
Previous setup measured better FWIW…
In bass maybe ,but in the important midrange much more energy.
You can hear her voice has more energy and body. Now her great voice comes through. my opinion.
still working a little on valleys and peaks in the bass. The path to perfection takes a while, and Rome wasn't built in seven days.
 
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Line source dispersion is cylindrical, this means virtually no ceiling or floor reflections. There is virtually no dispersion on the vertical axis…it’s why the SPL with distance drop is less with a line source than a point source, which disperses evenly in all axes.
I understand that ... however the left hand speaker is very close to ceiling .. I would expect some reflections in that case .. my main point was side and rear walls .. my guess is the wonkier upper fr plots in new layout is the result of these ..
 
Previous setup measured better FWIW…
I don't see that.

After seeing how far my frequency response charts in the treble range are from J.R.'s frequency response charts in the treble range I now believe there is something fundamentally cattywampus about my measurement instruments or measurement process and measurement results. I now consider what I have been doing to be pretty spurious, except for seeing relative improvement in the bass region.
 
I believe this is the system to which you refer..


Thank you. I thought that was the system being refered to -- Dato' Danon Han. He had Pendragons, and then switched to Kodos.
 
Thank you, Kedar and Lloyd! I am definitely glad that I did not fabricate in my head some excuse not to hire a professional set-up expert!
 
The lower registers are (IMO) the hardest to get right.

Tom
 
with broadband tube traps very difficult, they only help with high reverb times. To get rid of valleys and peaks, you need Helmholz resonators that eliminate or boost certain frequencies.
 
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The lower registers are (IMO) the hardest to get right.

Tom

My previous Martin-Logan Prodigy system did not suggest to me the magnitude of the room mode problems in my listening room, partly because 2 x 10" woofers did not generate nearly the low frequency energy of 8 x 8" woofers powered by 1000 watts of Gryphon Class AB.

I listened to music for about seven hours yesterday afternoon to evening. Among many tracks I played Dave Brubeck "Take Five" on Time Out. I heard the drums reproduce with greater resolution and texture than I ever recall having heard them before. I think J.R. is totally correct that his improvements in the bass have removed veiling and booming.
 
with broadband tube traps very difficult, they only help with high reverb times. To get rid of valleys and peaks, you need Helmholz resonators that eliminate or boost certain frequencies.

I largely agree with this. This is why Art Noxon and his team at ASC been researching and re-developing for months what they are calling "Resnickator TubeTraps" -- a second generation version of their custom Tube Trap with a built-in Helmholtz resonator tuned to a specific frequency for higher Q.
 
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I believe that he owns Gryphon Kodo in his personal system. He also has some experience with Jadis electronics :

Looks like Pendragon still in the photos at least and...the woofers are on the outside.
 
Line source dispersion is cylindrical, this means virtually no ceiling or floor reflections. There is virtually no dispersion on the vertical axis…it’s why the SPL with distance drop is less with a line source than a point source, which disperses evenly in all axes.
Your correct on dispersion but wrong on room treatment
 
I understand that ... however the left hand speaker is very close to ceiling .. I would expect some reflections in that case .. my main point was side and rear walls .. my guess is the wonkier upper fr plots in new layout is the result of these ..
Panels are dipole, which also means figure 8 pattern, which means first reflections are not nearly as much of an issue as there is a null to the sides of the speaker.
 
How is the imaging ? Is it solid or smoky at times
do vocals stay focused with her and other sounds ?
vocals can move slightly by room reflections
Where instruments not as much
does the image have depth ?
Lastly where was her voice from top to bottom
Meaning how tall was she ? I’ve had an 8 foot tall Elvis between my towers lol.
 
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Looks like Pendragon still in the photos at least and...the woofers are on the outside.

Yes, indeed! Thank you for unearthing that article!

And it does show from 2016 a prior instance of Pendragon woofer towers inside of the panels!
 

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