makeshift sub box

[79rolla]

hey i just braught mysef a 15 inch sub off trademe and im not sured if im going to spend any mony putting it or not depending on the cost of a amp

anyway is there any way of making a makeshift box for it if i get an amp and not a box??
cant relly be bother making a proper box atm
would it be posibil to use a bit of pipe or sumthing to sit it in for now??

any ideas welcome

[solitaire]

um, it needs to be enclosed, if the air can move relatively freely form in front of the sub to behind (i.e. the pressure equalises easily) then you will have pretty much no bass...

A lot of people cut holes in the back but that really only makes a noticable difference if you have a box that is an ideal size for the sub... which in most cases is too big to fit in a car... i have a 10" which goes beautifully with no hole cut in the back...so really in this case if your trying to do cheap and easy just stick it in anything you can find and make sure its sealed

edit: doesnt need a vacume... just enough to suffocate anything trapped inside

[79rolla]

arnt they suppost to have a smallish hole in them like most speekerboxes?

[Alex B]

Port sizing is very important. You cant just go putting random holes in the box. If you have the box sealed it will be more puncy, but not as loud...well thats the theory anyway.

[79rolla]

ok thanks
also does the miterial of the box matter??

[Alex B]

Yeah 18mm MDF is usually good. Ive herd of some people using 25. But thats probably over kill for your sub.

[Flunk]

Yeah 18mm MDF is usually good. Ive herd of some people using 25. But thats probably over kill for your sub.

my sub box is 25mm mdf, with 2 port holes about 2 inches wide, each... but im running 2x 12" 400w subs in mine.. have been tempted to plug the holes to see if theres much difference, good or bad idea?

[Alex B]

Might do, what is the box tuned to?

[Mr.Phreak]

Are they actually ports?? Or just holes in the box??

[rage]

i think some people here need to go do some research into speakers and boxes before posting in this thread

[solitaire]

My Comments where reasearched and put into pratice... i might add though that im more interested in punch than volume... my stereo is for me not the car next to me

[Flunk]

Are they actually ports?? Or just holes in the box??

ports i would say... internally, there is a spacer, so that the 2 subs, arent sharing the same air space... 1 port for each sub.

[snwtoy]

By the time you buy the wood, screws, glue, jigsaw + skillsaw (if you don't have them) then invest a decent amount of time, it's a lot cheaper and easier to buy a second hand premade box off trademe.. if you can find one local.

[Adydas]

Just go buy one from a car audio place, geeze its not like there mega bucks and if you cant afford that perhaps you shouldnt have started down the sub and amp path.

[Alex B]

If you buy one get it custom made for the sub, not just some off the shelf she'l be right POS.

[samlloyd]

My Comments where reasearched and put into pratice... i might add though that im more interested in punch than volume... my stereo is for me not the car next to me

Cut holes in box means leakey sealed box=Shit. Box with ports that are tuned to a certain frequencey by the length of them=Good.

[ThundaChild]

Put it inb a proper box dude...you can do ireversible damage if the sub doesn`t have the appropriate housing backpressure mounting....

[darkwolf]

IF you build your own box make sure you do it properly. A decent sub or subs will break a badly made box. I did it to one i made in 30 mins. Although it is really funny.