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Posted (edited)

I made a 4th order bandpass a few months ago, and ended up blowing the sub an hour after its maiden voyage...

Here's the build from the beginning

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Edited by alman101
alexman101_PSN2.jpg
Posted (edited)

And heres the next victim...

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And now heres the finished product with a little problem...

Edited by alman101
alexman101_PSN2.jpg
Posted (edited)

Dude...you posted this months ago?

I know it got deleted and now I need help with a problem

Edited by alman101
alexman101_PSN2.jpg
Posted

Sounds like the subs bottoming out.

Its not, it sounds the same with the gian at 1/2. I think its my port but I'm not 100% sure

And if someone knows how to embed the video that would be great. I cant get it to work

alexman101_PSN2.jpg
Posted

Look at the coil former on the blown sub and you'll see its bent from slamming itself on the bottom and your hearing metal to metal contact in there in your video. The sub is unloading and going to ruin this sub if you keep playing with it in there.

01 Ford focus ZX3

Pioneer AVH-X491BHS

PPI PC 4800.2

Morel Maximo 6.5" x2

Posted

put the youtube url in [ youtube]

with no spaces

“He has all the virtues I dislike and none of the vices I admire.”

Winston Churchill

Posted (edited)

one thing i remember from your other thread was your sealed part was to big

and the ported is tuned to 30 hz which means your probibably tuned low low low

re tune the port closer to 60 hz and you'll notice a difference

edit

after watching video that sounds like shit you need work on enclosure more before you blow another sub

Edited by uhoh_45

R.I.P!

(Nov-29-2009)

92 explorer

- 4 Atomic Apxx 15s duel .7s - 4rth order bandpass wall -4 powerbass XA-3000D's - 16 8volt batts wired to 16 volts - (9+/9-) runs 0gauge - 152.3 Db @ 29hz

current build

97 chevy lumina4 - 1 Atomic Apx 18 - 6 cube slot port trunk sealed off - 1 powerbass XA-3000D - 2 optima G31s in spare tire18 1 run 1/0

Posted (edited)

one thing i remember from your other thread was your sealed part was to big

and the ported is tuned to 30 hz which means your probibably tuned low low low

re tune the port closer to 60 hz and you'll notice a difference

edit

after watching video that sounds like shit you need work on enclosure more before you blow another sub

ok thanks for the info, i will take out the port today and cut it down a few inches, its a 9inch PVC pipe, ya i know ghetto

Edited by alman101
alexman101_PSN2.jpg

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