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Designing car enclosure for EDGE STREET ED510A
Designing car enclosure for EDGE STREET ED510A
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Old 22nd April 2020, 11:08 PM   #1
ArvisP is offline ArvisP
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Join Date: Apr 2020
Default Designing car enclosure for EDGE STREET ED510A

I have this 10 inch subwoofer driver which comes from EDGE STREET ED510A active subwoofer (I don't have the original box or amp, only the driver).

I recently measured TS parameters of this driver using ARTA LIMP:
(used method described here: LINK)
Code:
Fs  = 44.01 Hz
Re  = 4.50 ohm[dc]
Le  = 723.71 uH
L2  = 1267.82 uH
R2  = 31.41 ohm
Qt  = 0.92
Qes = 1.05
Qms = 7.69
Mms = 83.25 grams
Rms = 2.991660 kg/s
Cms = 0.157079 mm/N
Vas = 25.47 liters
Sd= 339.79 cm^2
Bl  = 9.942153 Tm
ETA = 0.20 %
Lp(2.83V/1m) = 87.60 dB

Added Mass - Constant Bl Method:
Driver unbaffled 
Added mass = 66.00 grams
Membrane Diameter= 20.80 cm
I have a coupe of questions!

1) Could the measured parameters be realistic? Just wondering, maybe they are completely impossible.

2) What enclosure type would you suggest? I've read that with Qt value this high (0.92) it would sound bad in a ported enclosure, yet it originally comes in small ported box and currently is in a little bigger ported box tuned somewhere between 30-40hz, which generally sounds pretty good, except when down low at 25hz.
(I want to achieve not too far from flat response between 25 - 125hz if possible)

3) What box designing software would you suggest? Right now I'm using WinISD

4) Any way to take car interior resonant frequency into account to get flatter curve? I haven't measured this yet, but I guess that shouldn't be too hard to find out.

EDIT:
Checked my front speakers, I can safely filter them and subwoofer at 80hz, which gives me narrower band requirement which could be 25-80hz

Last edited by ArvisP; 23rd April 2020 at 05:17 PM.
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