if you search about on this website theres a subbox enclosure calculator and gives you exact measurements depending on your dimensions db rating etc etc

if you scroll down the list on the righthandside of the page its page 110

hope this help http://www.bcae1.com/

rob

I can definately reccomend sealing the inside with FG. Get a rubber glove on and mix up about a small handfull of it. Then run it into the corners with your fingers ensuring that it compltely fills anywhere 2 sides of MDF meet. This makes the box much much stronger!

varnish is to seal the air in tight, mdf without varnish apparently absorbs a little air. varnish gives a better seal

for the joins use plenty of wood glue, and then seal the inside joins with silicone

you must leave the silicone to set for around 10 hours before you put the sub in as the fumes it gives off while setting can damage parts of the sub

not sure about using fibreglass for sealing the joins, never used the stuff

some people will mention about sealing the joins on the outside of the box too, this is rubbish and pointless providing you have sealed the internals well :thumbs:

thanks, wats the varnish for???

should i use some fibreglass mat to seal the joins???

quote:

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Originally posted by AdiSRI
i aint really worried about volume i want it to sound nice......

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i aint really worried about volume i want it to sound nice......

Sad thing is that no matter how detailed the datasheets are u can always tune the box even better using the Q factor. And doing this is what gets u an extra 3 db's on average. And sound levels double with every 3db increase so its a fekkin lot.

quote:

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Originally posted by AdiSRI
hmmm, tbh the sub dont sound loud, u can hear no bass outside the car and it just sounds a bit.... wrong!!

Wud wadding help, or shud i try a smaller box u think for a more 'musical' sound?

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yeah i know ported will give that low rumble im after, but i want more SQ tbh, a sub that sounds like deep bass thats in tune with the music, not a seperate overwhelming bass.

I drive the car daily for a good length of time and i want a system that sounds nice, not is stupidly loud.

[Edited on 13-05-2004 by AdiSRI]

Are you after volume or sound quality?

If you want more volume from your sub with low bass, i'd definately suggest a ported enclosure

And as rob said, talkaudio.co.uk is a wealth of information :thumbs:

hmmm, tbh the sub dont sound loud, u can hear no bass outside the car and it just sounds a bit.... wrong!!

Wud wadding help, or shud i try a smaller box u think for a more 'musical' sound?

putting wadding in a box makes the air take longer to reach the back wall of the box therefore making the size of the box seem bigger therefore low bass. If you want help designing a perfect box try talkudio.co.uk. great forum for ice with lots of helpful people.

Adding wadding to a box will reduce the amount of reflections and gives a different sound.

The size of a sealed box changes the sound a little, but not as much as with ported. With a sealed box, the size of it alters both the power handling of the box, and the deepness of the bass

With a smaller sealed box it will play a higher frequency and handle more power

With a larger sealed box, it will handle less power, but will go much lower

[Edited on 13-05-2004 by cdcool1]

So what difference will box size make to the sound??

My sub is in a selaed box, and the box is near the upper range of size that they specify for the sub.
I also dont think it has any wadding in it.

If i got a smaller box or added wadding, what difference will it make to the sound???

Doing it myself as always. I considered all those proggys but no matter how much effort i put into it i kno for sure someone with experience could do a better job. Consulted Audiobahn about it last year but they were no help. I've managed to find the guy on Talk audio so hopefully i should be rollin in no time :thumbs:

Audiobahn are mainly for looks matey, however with a well designed ported box they do perform well

Are you wanting to make the actual box yourself or get someone else to do it?

If you're wanting to do it yourself then there is box designing software available

my current build has a sealed box. both facing down with my chrome magnets facing upwards, looks tasty. Only problem is i built it for looks. Now i wanna spend a couple of months building one that looks amazing but also gets the best outta the subs. I know they can perform much much better.

why dont you build yourself a sealed sub in the mean time? requires much less accuracy with volume and dont need to worry about tuning the port etc

Yeah its definately worth the effort to get the right box. A shit sub in the right box would give better performance than a great sub in the wrong box.

Once i kno what box options i have i'll start designin a rebuild. Itchin to get started tho :-(

i used just ice in harlow when it came 2 doing my box dimensions. very helpful and got perfect size. cost a little but well worth it

Yeah seen em before. Theyre good but not perfect. The fella who used to design em on the web tuned them perfectly according to Q factor. He could get a gain of an average 3Db.

Really wanted him to make one but cant find him anywhere:(

take a look on the audiobahn website, they have about 3 or 4 different box designs for each sub, depending upon what kind of sound you want :thumbs:

I have a pair of Audiobahn Aw1200Q's. Definately wanna change the box, its just not right for em. Does anyone know someone who designs boxes? there used to be a fella on this years ago but theres no trace of him anymore.