I built a sub box!

[philwsailz]

Big air leaks are a problem as they change the way the air works as suspension for the woofer. Little leaks affect performance just a little, but they are often the noisiest.


There is a chance that you have leaking between the box and the fiberglass wall. Here is what I would do if you think you do. Understand, you might have a perfect install already, but... If you think you have a serious leak:

With everything assembled like you have it, either trace around the box with a sharpie market, or just razor cut around it. Then remove the box, remove the carpet on the back wall, and gloop in some silicone, 3M 4200, or something else that is fairly thick, but will remain rubbery after curing. You need to do this as close to the round hole as possible as that is the only point of compression. This done correctly will alllow a good seal.

Otherwise, understand it is very common practive to install woofers into wood enclosures with the carpet under the woofer flange. The carpet will really do a pretty good job most of the time as a gasket when under compression, so you may not have a problem.

What do you think?

[anhaney]

Big air leaks are a problem as they change the way the air works as suspension for the woofer. Little leaks affect performance just a little, but they are often the noisiest.


There is a chance that you have leaking between the box and the fiberglass wall. Here is what I would do if you think you do. Understand, you might have a perfect install already, but... If you think you have a serious leak:

With everything assembled like you have it, either trace around the box with a sharpie market, or just razor cut around it. Then remove the box, remove the carpet on the back wall, and gloop in some silicone, 3M 4200, or something else that is fairly thick, but will remain rubbery after curing. You need to do this as close to the round hole as possible as that is the only point of compression. This done correctly will alllow a good seal.

Otherwise, understand it is very common practive to install woofers into wood enclosures with the carpet under the woofer flange. The carpet will really do a pretty good job most of the time as a gasket when under compression, so you may not have a problem.

What do you think?

In high school when I built stereo systems with my father who understood all this electrical stuff since he was and electronics engineer (I wish I would have payed attention to him now he is dead and I don't have his knowledge) we never put speakers in over carpet and we always sealed the boxes on the inside with a good lifetime silicone. We also used wood glue or liquid nails when putting the box together because screws alone have the potential of backing out with all the movement of air. He always said the best way to get good clean base is to make sure the box is air tight and if you are porting it to make sure the ports are perfectly sized and the rest of the box is air tight. I am getting ready to do my box and I will remove the carpet from the back wall to seal the speaker box up tight to the fiberglass. But based on room I know Tall is dealing with getting into the compartment to do that. It is super hard if you don't have the young kids to bend and twist around in there.

[dogbert]

In high school when I built stereo systems with my father who understood all this electrical stuff since he was and electronics engineer (I wish I would have payed attention to him now he is dead and I don't have his knowledge) we never put speakers in over carpet and we always sealed the boxes on the inside with a good lifetime silicone. We also used wood glue or liquid nails when putting the box together because screws alone have the potential of backing out with all the movement of air. He always said the best way to get good clean base is to make sure the box is air tight and if you are porting it to make sure the ports are perfectly sized and the rest of the box is air tight. I am getting ready to do my box and I will remove the carpet from the back wall to seal the speaker box up tight to the fiberglass. But based on room I know Tall is dealing with getting into the compartment to do that. It is super hard if you don't have the young kids to bend and twist around in there.

Your father was a wise man. Cabinet construction is the single biggest factor in making speakers sound good. You can take average components and put them in a superior cabinet and they will sound way better than the best components in an average cabinet design. It's kind of like a fine musical instrument (e.g., guitar, violin, cello, etc.).

As for the compartment, be thankful you don't have my boat or NICKYPOO's boat. I still have no idea how he got his sub box installed.

[chpthril]

Your father was a wise man. Cabinet construction is the single biggest factor in making speakers sound good. You can take average components and put them in a superior cabinet and they will sound way better than the best components in an average cabinet design. It's kind of like a fine musical instrument (e.g., guitar, violin, cello, etc.).

As for the compartment, be thankful you don't have my boat or NICKYPOO's boat. I still have no idea how he got his sub box installed.

[talltigeguy]

Sounds cool dude. So Birth'n babies is easier huh

If you exclude the outer dimensions and just measure the inner dimensions, you may find it closer to the 1.25 cuft.


You gotta post some pics man we dont care what it looks like

I am not sure that getting a mechanically inclined small person is a very good option, but a guy like that would be worth his weight in gold!

Here is a pic of the box. I painted it with bedliner, and it works pretty decently. I have had enough of that and will leave it alone unless my box falls apart. I really have no desire to tackle that task again. As you said, I'd rather help a woman have an 11 pound baby that do that again.

[MRMoffat1]

[CP3]

HAHAHAHA