Maybe something to consider. Maybe I am wrong.
Your box is heavily stuffed. What we are achieving with stuffing closed boxes? We get apparently bigger volume due to lovered speed of sound. As you wrote Q fell from 0.90 to 0.74, what is not small step. So, as box is apparently biger, first standing wave is lower.
Try to model the box which dimensions giving Q=0.74 without any stuffing and calculate standing wave resonance. Could be close to your measured resonance.
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@Zvu I have, and yes, it looks like it's at the top of the pile.
My only concern is the high Fs (95 Hz) and the rising distortion from 250 Hz upward shown in the datasheet. I know it's measured at 110 dB, but I’m not sure where distortion will start creeping in at lower levels.
I came across this set of measurements:
https://www.robsandiy.com/html/mid_bass/bms_5s117_8.html
Distortion appears to sit between 0.1–0.2% at 85 dB across the passband I’m interested in, which is great. The Fs there shows 100 Hz, slightly higher, but it's still a lot of money to commit to something that's unproven for my application. I'd love to see some polar measurements too.
What are your thoughts?
I did A-B the single speaker against one of my Genelecs and I didn't like it but then I was probabbly looking for problems.
My only concern is the high Fs (95 Hz) and the rising distortion from 250 Hz upward shown in the datasheet. I know it's measured at 110 dB, but I’m not sure where distortion will start creeping in at lower levels.
I came across this set of measurements:
https://www.robsandiy.com/html/mid_bass/bms_5s117_8.html
Distortion appears to sit between 0.1–0.2% at 85 dB across the passband I’m interested in, which is great. The Fs there shows 100 Hz, slightly higher, but it's still a lot of money to commit to something that's unproven for my application. I'd love to see some polar measurements too.
What are your thoughts?
I did A-B the single speaker against one of my Genelecs and I didn't like it but then I was probabbly looking for problems.