Some WINISD help please.

[Jscoyne2]

Hey all. So i'm building a huge fiberglass enclosure out of my entire back quarter panel in my hatch and i just went for it without really trying to figure out total enclosure size. From some VERY rough estimates. We're looking around the 2.0 cuft mark. I ended up getting a SSA Icon 12'' that only calls for around 1.25 cuft sealed. I can certainly cut down or fill in the enclosure once its done to make it smaller. I have quite a bit of power on tap so i did some WINISD modeling and well..i am just not seeing that big of a difference between a volume of 1.25 cuft and 2.0. Keep in mind that im not the best at modeling so maybe i put in a number wrong at some point which is what im thinking may have happened. Can anyone verify this on their own or if they have access to Bass Box, that'd be appreciated as well. Thanks. Pics for reference. QTC= .59 at 1.25, QTC= .53 at 2.0 cuft. Excursion modeled at 2000rms which is the highest rms the manufacturer recommends.

link to the Icon Specs. https://store.soundsolutionsaudio.co...woofer-by-ssa/

• D4 / D2
• Fs. 30.9 / 29.7 hz
• Re 8.0 / 4.0 ohms
• Qms 5.79
• Qes 0.45 / 0.42
• Qts 0.42 / 0.39
• Cms 0.10 mm/N
• Mms 259.6 / 256.5 gr
• Bl 21.1 / 21.1 N/A
• SPL 85.7 / 86.1 dB
• VAS 37.4 L
• SD 480cm^2
• Le 3.7mH
• Xmax 23mm
• RMS 1250 watt

[Grinder]

I can check it out WinISD late this evening (after 10:00 EST).

[Jscoyne2]

I can check it out WinISD late this evening (after 10:00 EST).

sure no rush

[Grinder]

D4 or D2?



<edit> I'll go ahead and start modeling D4.

[Jscoyne2]

D4 or D2?



<edit> I'll go ahead and start modeling D4.

D2 actually heh thanks

[Grinder]

D2

0.607 ft^3 = 0.707 Qtc, 23mm excursion at 13.8 Hz, 2,000 watts (55.37 F3)



1.25 ft^3 = 0.579 Qtc, 23mm excursion at 15.3 Hz, 1,000 watts (56.36 F3)



2.0 ft^3 = 0.522 Qtc, 23mm excursion at 14.1 Hz, 700 watts (58.39 F3)



(no filters)

[Grinder]

Does that help?

<edit> I just now noticed your HP filters. I've never used them before. I guess I should give it a try...

[Grinder]

Here's your excursion at 2.0 ft^3, 2000 watts with filter:

[Jscoyne2]

Thanks. Looks pretty darn manageable. I bet with a stiffer spider, these would be a decent IB candidate. Thanks for all your work

[Black Rain]

This seems like a very good underrated SQ sub @ 1kw rms. According to the graphs, this could the Adire Brahma a run for its money.

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