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Discussion Starter #1
First off, I'd like to thank the fine folks at Madisound for helping me out with drivers. They've been extremely helpful and I can't thank them enough.

Driver:
Fountek FR88EX

I've attached reports in pdf format. I have also provided pictures of the more popular type data.



I've tested the FR89EX as well here.
Here are some comparison pictures of the two drivers (the FR89 is a touch deeper due to the larger magnet):



 

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Discussion Starter #3 (Edited)
LSI:

See attached PDF for full analysis.

Same as with the FR89EX, I couldn't resolve Bl without pushing the suspension to the point of no return. But, regardless, suspension is the weakest link here.

Bl xmax = > 3.5mm
Cmin xmax = 2.4mm



IMG]http://i18.photobucket.com/albums/b138/bikinpunk/Speaker%20Testing/Fountek%20FR88EX/img_BlX.png[/IMG]







 

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Discussion Starter #5
IMD (f2,bass tone = 50hz):

http://i18.photobucket.com/albums/b138/bikinpunk/Speaker%20Testing

[IMG]http://i18.photobucket.com/albums/b138/bikinpunk/Speaker%20Testing/Fountek%20FR88EX/img_3rdHarmonic_.png








/Fountek%20FR88EX/img_2ndHarmonic_.png[/IMG]







 

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Ha, detailed. That's a bit of a misnomer isn't it? Nonlinear distortion testing paints a fairly clear picture, it's not that bellow par speakers don't reproduce certain aspects but rather that they cloud the true signal with artifacts that shouldn't be there. "Clean" is a more truthful depiction.
 

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