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Drek75633

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Posted
Do you know what its gonna take to hold up 32kw in a daily driver?? I dont see in happening. If you do, then good job

my car peaks at 45hz no matter what freq my box is tuned at..

a wall would shrink the cabin space which will change the resonant frequency up

liquid nails has always sucked for me, titebond ftw

proper bracing locations can help alot too

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Posted
a wall would shrink the cabin space which will change the resonant frequency up

liquid nails has always sucked for me, titebond ftw

proper bracing locations can help alot too

Exactly. The smaller the cab. The higher the resonant frequency. Proper bracing throughout the box will also raise db's. And I've never heard of titebond. I'm goin to have to check into that. At the comp today my bracing for the port started breaking. I had used liquid nail to support them. Oh well. This box I have now is just a pos... I didn't get the numbers I wanted because of the box.

2004 Mustang

3 18s

6 crossfire bmf 1700s strapped @ .5

161.2 db Daily driver

159.4 @ 45 hz

158.7 @ 35 hz

154.4 @ 25 hz

Team Hz Addiction

http://www.youtube.com/Drek75633

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Posted
Proper bracing throughout the box will also raise db's.

No it won't. Internal turbulence, dodgy loading of the cone = less dB. If your SPL box is flexing enough that it needs bracing then you built it wrong.

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10.x volts fo' life!

Posted
Remind me how you're going to tune at 35hz and peak at 44hz? I've never seen a car peak 9hz off the tuning frequency...

Not to be that guy but my car peaked exactly 9 hz off of tuning freq. Tuned to 33 hz and peaked at 42 hz.

1999 Pontiac Sunfire

Alpine CDA-9886

Sundown Audio SAZ-1000D

Sundown Audio SAX-50.4

Rainbow SAC 265.25 Components

Image Dynamics iD12

Optima Yellow Top

SQFire FTW.

Posted
Not to be that guy but my car peaked exactly 9 hz off of tuning freq. Tuned to 33 hz and peaked at 42 hz.

@_____@

I would have to assume your box had a very small/no peak (bass shelf response) and your car had a peak at 42hz...

To rephrase... it will never happen with a competition-orientated box.

goodgrammarbc7.gif

10.x volts fo' life!

Posted

Ya I know. :)

That box sucked. It was too small. And it didnt do shit on the TL. Hahahaha.

1999 Pontiac Sunfire

Alpine CDA-9886

Sundown Audio SAZ-1000D

Sundown Audio SAX-50.4

Rainbow SAC 265.25 Components

Image Dynamics iD12

Optima Yellow Top

SQFire FTW.

  • 2 weeks later...
Posted

You should build a test box for one sub. Figure out how much space you have and make your test box half of that. Use a round port, start with a low tuning and go up from there until you reach a reasonable compromise on tuning and SPL. One sheet of wood seems like a good investment if you are going to be walling your car off.

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