Mini F8 Project - Derived from lilmike's F20 - AVS Forum
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post #1 of 11 Old 06-21-2013, 09:57 PM - Thread Starter
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With much help from people here, and especially lilmike, I have come up with a design that I will implement in a pair for a friend. I am sure you can see the similarity with lilmike's F20 smile.gif Build will be in this thread. Speaker used for the build is the Dayton DCS205-4. It can also be build wider and dual loaded with DCS205-4's.

Corner loaded it should give me something decent in the 30hz region. Design ended up a bit shorter to fit in the box, which took about 1db away according to hornresp.

Overall the box adds up to just under 8cubic feet, dimensions approximate to 49"x17"x16" - However the width of the cab is pretty liberal, you can go down to about 13" wide without losing too much.. Or as much as 21" wide and get a slight bump in bass extention..

Here is my design progress so far:
0.5 Pi response and sketchup:

MiniF8.txt 0k .txt file




Cheers!
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post #2 of 11 Old 06-22-2013, 01:16 PM - Thread Starter
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Ok, here it is refolded to use the entire volume of the enclosure... a few db here and there, no big changes - but a big difference in simplicity / ease of build. The previous horn is in grey, the newly refolded one is in black on hornresp pic.

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post #3 of 11 Old 06-22-2013, 06:21 PM
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I look forward to your progress.smile.gif
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post #4 of 11 Old 06-23-2013, 09:37 AM
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Looks like a nice little horn! Easy to build, too! Keep us up to date.
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post #5 of 11 Old 06-23-2013, 11:10 AM - Thread Starter
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Thanks guys!
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post #6 of 11 Old 06-24-2013, 08:23 PM - Thread Starter
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Ok, so after showing the plans to the guy, we had a discussion and this is the result:




3 tiny cubic feet!! This is pretty small, and the output should still be pretty smooth for an 8" speaker. Hope he likes it, and I am very curious of what will end up happening here.. Im going to get REW, just dont know what to do for a mic?
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post #7 of 11 Old 06-26-2013, 01:46 PM
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Is the simulation of refold still using the 16" width? So the cab will end up being 23.6" x 15" x 16"?

Chris

"It hurts to admit when you make mistakes - but when they are big enough, the pain only lasts a second."
--Despair, Inc. "Regret"

My AviaTrix TM Build
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post #8 of 11 Old 07-02-2013, 07:26 PM - Thread Starter
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Ok, so after further discussion, this is the final result and measurements. Was not easy to fold, but its done. Build will be this or next week.



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post #9 of 11 Old 07-03-2013, 06:25 AM - Thread Starter
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Just a question for people who have built horns.. can I get away with not using the 25 1/16 pannel? It would help tremendously in the cutsheet..
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post #10 of 11 Old 07-03-2013, 10:38 AM
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Quote:
Originally Posted by diaz View Post

Just a question for people who have built horns.. can I get away with not using the 25 1/16 pannel? It would help tremendously in the cutsheet..

Only if you fix the rest of the flare.

Looks like it can be done, but that means a refold.
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post #11 of 11 Old 07-17-2013, 08:36 PM - Thread Starter
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Ok, here's the fixed refold, looks pretty good now. This is going to be cut in the following weeks.





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