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Discussion Starter #126
Sorry I dont have any specs. Once i sent email to DD and ask specs but they didnt answer to me :crying:
The 3515D was sold with the parameters listed on a piece of paper in the shipping box. Someone on the car audio forums may have them if you ask around.
 

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Fi IB318 2 ohm, though without its inductance spec [Le], the sim may not reflect reality too much.

GM
Thanks i try this one,it will not make a correct calculation like this?
I need the LE,i see or i can get it and post it back over here.
Thanks a lot !!
 

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Right, depending on the driver's design, Le can be quite high, especially on a large driver. The attached is strictly a made up example of how much it can alter a driver's frequency response sim [orange trace].

GM
 

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May I please have a file for
JL Audio 10w3v3-2

Free Air Resonance (Fs) 32.97 Hz
Electrical “Q” (Qes) 0.533
Mechanical “Q” (Qms) 7.027
Total speaker “Q” (Qts) 0.495
Equivalent Compliance (Vas) 1.136 cu ft / 32.17 L
One-Way Linear Excursion (Xmax)* 0.550 in / 14.0 mm
Efficiency (1W/1m) 85.37 dB SPL
Effective Piston Area (Sd) 53.475 in² 0.0345 m²
DC Resistance (Re) 1.7 ohm
Nominal Impedance 2 ohm
Power Handling (continuous) 500W

Thanks
 

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Thanks Mike
I did have a go at it myself but i got different results from you.
Is there anyway of being able to calculate a slot port design box rather than a tube port one?
I am not worried about the size or shape of the box, looking to get it to do down as low as possible.
Thanks Alan
 
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