Hello guys, two years ago I made a small box 12+1.4
[URL unfurl="true"]https://www.mikesound.com/stavba/MMB-11214H/mmb11214h.htm[/URL]
And only today I tried the phase correction of a 12" speaker with an oblique mounting, I was missing 600hz, so I remembered that this was solved here with my previous box 2x10 +horn (MB-21014H)
[URL unfurl="true"]https://www.mikesound.com/stavba/MB-21014KXH/mb21014kxh.htm[/URL]
and I think the same solution will help in that box. I covered more than half of the speaker membrane with a plate, for 12" it is 230mm and I have an increase of almost 15 dB at 600hz. The advantage is that the box does not have to be modified in any way, the plate with the necessary distance for the displacement of the membrane is just inserted and mounted via the screws of the speaker. I am attaching a picture of the test phase corrector and measurement, white is without correction and blue is with correction.
Mike
