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see "cbt speaker"))

I did warn you!)) IMO it would be nice to first understand what we want to measure, then we can figure out how to measure it..

Have you seen this thread? https://www.audiosciencereview.com/forum/index.php?threads/do-high-efficiency-speakers-really-have-better-dynamics.25980/ Not sure if there is an answer to your question))

curved BAD But tread was about ready-made slats))..

Room may be called untreated. A little bit of polyester is lying around.

It is in the calculator: But polyester is completely harmless. Bulk PET for inner layer and thin, say 1-2", plates as coverage?.. I personally use double bass array for LF absorption)). But I wonder what the people can do with absorbers.

May be it is.. Practical results are interesting. I don't know how breathable this felt is.

60cm of glass wool behind the slats, and w\o felt and w\o slats: arbitrary felt thickness and GFR values and simplified model...

measured onboard souncard:

~41 Hz if your center is Focal Aria CC 900:) https://www.audiosciencereview.com/forum/index.php?threads/focal-aria-900-series-amp-load-measurement.19058/

Measure what you have. For example, there may be a hole (ok let's call it a deep) somewhere in the region of 40-70 hertz

IIRC a little lower 90 Hz. Speakers delayed up to smooth PET. Not completely. Initial decay improved, while tuning is unperfect, while decay before wasn't very bad. IMO\IME improving initial decay is audible in general case, while tails, say below 20 dB, [may] remains in real world. It is also...

Don't for actual setup. Gonna add measurements in the indefinite future. Old first try, before after: and well audible difference in D50

And could practically work together. With some decrease in the DBA effect. Also, some correction of the wave front is possible. I disagree, both *BA and HKA are absolutely rational))

Even if a 1/4 wall width location is suitable - the centers will be too high for a seated listener. You may see effects of inaccurate positioning in RoomSim, quite a useful result can be obtained at low frequencies.

https://www.diyaudio.com/community/threads/favorite-threads-and-posts-in-loudspeakers.104827/page-2#post-7194070 ))

Have you heard to such system? IIRC one audioholic tried this; his report isn't very encouraging. About the front bass of D(S)BA has been written repeatedly. I don't know anything about real world implementations of a stereo *bass array. Do you want to try?))

Briefly answer - DBA or SBA. :cool: In a passband D works better, than moderate sized S. Also "hybrid" forms may exist))

added in my tread