What will happen if the Sub box i have isn't completely vaccuum

[BigSubBoomer]

What will happen if the Sub box i have isn't completely vaccuumed.

So, if there is a hole or something how drastically will my sounds quality drop if at all?

[beardog03]

it will fart alot !

[BigSubBoomer]

yeah but no damage right?

[MacLeod]

No damage and if the hole is small enough its doubtful youd even notice. At most you could get some wicked port noise from the pressure of the air coming thru there.

Still, its a real good idea to build it as solid as possible and to seal it as best you can. Run down to Lowes and pick up some silicone sealant and go to town.

[RuSsMaN]

It won't be suitable for space flight.

[beardog03]

and it will fart...!

[Joelsbass]

If you use silicon sealant like Mac suggested make sure you leave the box empty for a few days. the vapors from curing silicon can damage the surround of your sub!

[PolkThug]

I use Liquid Nails, seems to work really good.

[eloplayspolo]

i like to weld my edges, and then cover them with concrete, makes for a strong box, and it makes it hard for a crook to take it out of your trunk.


Hope this was helpful :)

[dudeinaroom]

you guys work too hard all you need is an old cardboard amsoil box and some duct tape

[eloplayspolo]

o shoot, good work. where can i find a small amp like that?

[najahaja]

it also depends on the box type, and how big the potential hole is.

If it is sealed, it can make a huge difference.
If it is ported, still a difference, but lesser.

But no, in essence, you cannot 'hurt' the sub, unless there is some weird anomaly.

[Installer4life]

Use good quality silicone. I use window and door type. It is more expensive, about $5.50 a tube, but it doesn't smell and usually only needs about 8 hours of drying time. I usually let is dry over night. Most of the boxes that are built right and still covered with carpet will allow some air to move in and out of the box around that seal. Use a gasket if possible on the speaker. If the speaker doesn't come with a gasket I usually make one out of cork. For best results try not to use carpet as the speaker seal.

[eloplayspolo]

my MTX box has carpet as a seal? does it make that much of a diffrence? should i disassemble it and make one?

[MacLeod]

I think there needs to be a "no home audio guys allowed" rule on this side.

:p :D

[wingnut4772]

Your eyes will pop out of your head and you will have the inexplicable urge to say 'Give dis people air!'.


Edit: Oh wait a minute..that's what would happen if you had a complete vacuum. Carry on.

[MacLeod]

my MTX box has carpet as a seal? does it make that much of a diffrence? should i disassemble it and make one?

I doubt MTX would build a box and use carpet to seal it. If its an MTX box, its sealed and built properly.

[eloplayspolo]

its an mtx empty box, do the momos have a gasket?

[eloplayspolo]

i mean ther isnt a seal between my subs and the openings, the rest of it was sealed with a black resin i can see

[MacLeod]

If its screwed down tight, itll be fine.

[Installer4life]

MTX builds all the boxes for Circuit City even the unloaded ones and they use carpet as a gasket. If you build a box you can plan ahead not to use carpet as a gasket. Most pre-fab boxes will use carpet. Of course most pre-fabe boxes are not built specifically for any one subwoofer. Custom built boxes, that are built properly, have the correct size hole for the given woofer as well as the correct internal volume. When I build them I always build a flush panel for the woofer which allows me the ability to trim in carpet but use a better sealing material for the gasket. It also makes the mounting service stronger because it is thicker (2 pieces of MDF). Since most woofers are designed to work in both sealed and ported enclosures you will still get pretty good response out of a pre-fab enclosure but you will not get the best response. If the box leaks the woofer doesn't have as much force on the suspension therefore your power handling will probalby be less and you will lose some performance. The older Polk MM12 woofer/enclosure combination is a good example. That box was air tight. You could hardly push the woofer in and that is one of the reasons why it performed so well. I build my sub enclosures this way because it is the best way to do it. It takes very little extra effort to do it right and that is what I recommend. If the "home audio guys" quote was aimed at me I hate to disappoint you, I am a car audio guy with over 20 years experience and I just believe in doing things the right way. There are entirely to many sub par car audio installers in the industry. I believe in teaching people the right way to do it an not the "ok" way. I have seen people pay thousands of dollars for equipment only to have second rate installers do a botched install job and these people never really get to enjoy all the performance they paid for. You can "get by" with a lot of things in this industry but that is not the way I think.

[eloplayspolo]

hey, i got 125 buck mtx box for 25 bucks thanks to my employee discount.

[dudeinaroom]

I think there needs to be a "no home audio guys allowed" rule on this side.

:p :D

now wait a min. Nobody had any problems with my amp recommendations in another thread on your sacred car audio forums. sorry, I for got you guys don't like humor.:p :D

It takes very little extra effort to do it right and that is what I recommend. If the "home audio guys" quote was aimed at me I hate to disappoint you, I am a car audio guy with over 20 years experience and I just believe in doing things the right way. There are entirely to many sub par car audio installers in the industry. I believe in teaching people the right way to do it an not the "ok" way. I have seen people pay thousands of dollars for equipment only to have second rate installers do a botched install job and these people never really get to enjoy all the performance they paid for. You can "get by" with a lot of things in this industry but that is not the way I think.

I agree, and I'm sorry I only have 15 years experience

[MacLeod]

now wait a min. Nobody had any problems with my amp recommendations in another thread on your sacred car audio forums. sorry, I for got you guys don't like humor.:p :D

Sure we like humor.

We love to sit around and laugh at the $50 extension cords you guys use!


**runs and hides**



:D :p

[Installer4life]

hey, i got 125 buck mtx box for 25 bucks thanks to my employee discount.

Thats a nice discount. Who do you work for?

[AndyGwis]

'Give dis people air!'.

Darla, way to seamlessly (or hole-less-ly) work in a Total Recall quote.

2 points for you.

[wingnut4772]

Darla, way to seamlessly (or hole-less-ly) work in a Total Recall quote.

2 points for you.

Yay! 3 more and I can send off for my Super Secret Spy decoder.:D