That's not what I need, I've seen all that.
I was looking for an internet link to the actual make and model of the full range driver in the hope of double checking its specifications.
Don't you see that, according to your list, the sensitivity may range from 85 dB to 91 dB?
That would make a mockery of attenuating that driver's output by 1 dB as you intend to do.
In fact, as Geoff implied in your other thread, a difference of 1 dB is so small as to be effectively inaudible.
P.S. It's not even clear if it's 4 or 8 ohm!
My link to the (sub)woofer contains this information: "There are no response or impedance curves for the speaker."
EDIT: Here's the instruction manual: https://falconamplificadores.com.br/wp-content/uploads/2017/01/Manual-XS400-XD500-10.pdf
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I emailed the manufacturer to send me the woofer curve and response graph.
Here is the midranger curve and response
It's the only thing I have with this image quality. I apologize for that, please.
The Aiyima (full range) driver is available in both 4 ohm and 8 ohm versions. Please confirm that you have the 4 ohm version.
Unfortunately, the numerical scales on the SPL vs Freq graph below are indistinct.
I believe you are referring to frequency cuts (the frequencies chosen as crossover frequencies), but that is not the issue.
I'm trying to study the SPL of the 'mid' driver between the frequency cuts, but am unable to read the scales on the graph.
That information would be useful in when it comes to determining whether or not the 'mid' requires attenuation.
I put those graphs into Word and blew them up to 200%; the SPL is 0 at the bottom, 100 at the top; impedance 'hump' is at about 20 ohms and 500Hz, assuming the green line is the 4 ohm version..
The impedance graph shows how "4 ohm" drivers aren't 4 ohms all the time.
Edit: my apologies, my post crossed with AllenB and his graph is much more useful.
SPL and impedance graphs for the tweeter are readily available.
If the woofer graphs and cabinet dimensions were available , that would be helpful too.
Geoff
The impedance graph shows how "4 ohm" drivers aren't 4 ohms all the time.
Edit: my apologies, my post crossed with AllenB and his graph is much more useful.
SPL and impedance graphs for the tweeter are readily available.
If the woofer graphs and cabinet dimensions were available , that would be helpful too.
Geoff
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Yes, it was even a challenge for frequency and I had to rely on the 1 2 5 10 spacing to work it out.
I'm confused by the "500Hz" because this so-called 'mid' driver is actually a full range driver with a quoted resonance frequency of 94 Hz.
How did you get this graph? Very interesting.
the woofer box will be 30 liters and the midranger box will be 3 liters
The 'mid' driver has to operate between fL = 400 Hz and fH = 3200 Hz according to the presently intended crossover design.
I estimate from AllenB's graph that the 'mid' driver's SPL averages around 89 dB over that range.
I estimate from AllenB's graph that the 'mid' driver's SPL averages around 89 dB over that range.
I'm just going by the supplied graph and it's hard to read the numbers, so I could well be wrong; doesn't make sense to me either
Geoff