DIY: Build your sub box for $30 in 5 minutes. No woodworking skills necessary.

[Holidays99]

I wish the 12" wasn't sold out, unfortunate i was thinking of purchasing that one.
Off on a tangent where is 12v located in Chicago I live in the south suburbs and might want to get an install done.

[V36]

Seems like I missed the boat as well Hopefully the inventory will be restocked in the near future, because I definitely need to get my hands on a 12" sub box.

[MrEX]

I just thought I should say that up to page 5.. This is the best thread I've ever read on the internet!

[Z4ZULYK]

I'm definitely getting one for my car.

[rguil15]

I shut down shop and began my career in mechanical engineering.

I've been working for 2 years at the DOE Lawrence Berkeley National Laboratory in the Engineering department.

I can't help myself.

Did anyone call this guy out on this? I stopped at page 6.

An engineering "tech" is NOT a Mechanical Engineer. I don't care who's lab your work in, a tech degree is not a BS in Engineering.

I was unaware that i missed all of the fun. But I hate to see people settle for something with the idea that it will give them the same results for a really cheap price. That does not happen very often. As far as your enclosure not being 3/4", if it is my bad, but the sides look 1/2" in the photo. I just take lots of pride in my work and the skills that I and many others have learned.

No offense but why do you "professional" box builders talk about it as if you've mastered some ancient secret trade that eludes the mere mortal? Are you making damascus steel or doing a basic volume calculation and trusting that the adhesive you use actually does what you've heard it will do?

[12v Electronics]

I can't help myself.

Did anyone call this guy out on this? I stopped at page 6.

An engineering "tech" is NOT a Mechanical Engineer. I don't give a shit who's lab your work in, a tech degree is not even remotely close to an BS in Engineering.

Welcome to the forum. This was an interesting thread to say the least. If you got some time, read on. It gets continually interesting until the last few pages. Also please watch your language. This is a family show.

Thanks,
Tom

And for others interested in the enclosure, There is one stubborn 15" box that will not go. All the rest are gone. We do not sell many 15 inch speakers, so best offer takes it. - note, it can be used for a 12" if the airspace requirements are met and you want to modify.

[rguil15]

Welcome to the forum. This was an interesting thread to say the least. If you got some time, read on. It gets continually interesting until the last few pages. Also please watch your language. This is a family show.

Thanks,
Tom

And for others interested in the enclosure, There is one stubborn 15" box that will not go. All the rest are gone. We do not sell many 15 inch speakers, so best offer takes it. - note, it can be used for a 12" if the airspace requirements are met and you want to modify.

I apologize for the language. Edited, sir. I hate that I missed out on the boxes, I'm looking at a '91 325i tomorrow and didn't want to make the drive to my old man's house to use the shop.

Thank you for the welcome, and I appreciate what you're doing here.

[Benny Z]

Also please watch your language. This is a family show.

Thanks,
Tom

i lol'd!

like anyone reading this forum gives a rat's ass.

[M633CSi]

Hey quick question, are you guys getting any more of the 12s? Im looking to run either 2 10s or 12s or 15s but I preffer 12s in my E23 735i. (HUGE TRUNK) Thanks, hopeing for a quick reply.

[speedcrazy1532]

Don't be a wuss, fiberglass it and save yourself some weight, trunk space, and learn something. Theres nothing thats less ballin then not being able to put something in the rear...

[goenitz666]

Ok, this is not meant to be a lecture but as car audio manufacturer, I have seen many, many boxes like this create real problems for the subwoofer and the over-all sound quality.

Keep in mind, double stick tape and a couple screws is not an optimum way of securing a subwoofer enclosure.
It may seal for now (it's new) but it's very likely to leak before too long.
Expansion and contraction of hot and cold temperatures coupled with internal pressure built up by the subwoofer will eventually cause failure.
It's $30.00 for a reason.

Every subwoofer has it's own box air space and tuning requirements.
Simply putting a subwoofer in a generic box outside of the manufacturers subwoofer specifications can cause damage to your subwoofer.

Quality boxes are designed based on the subwoofer manufacturers specifications and are generally miter cut, glued and stapled (nailed) to ensure a tight fit.

If you have your own subwoofer, I would recommend going to a qualified local car audio retailer to have a box built to fit your subwoofer.
You may be surprised how inexpensive a basic sealed enclosure can be.
Porting is also best left to the pros.

Man, some one got pissy in a hurry...

Doing it right is one thing, but car audio "specialists" are in the same category as racer boys. I'd rather blow my greenbacks on that steering pump i've been meaning to replace, than a gaudy stereo.
BMW= the Ultimate Driving Machine

Had a few minutes at work so I plotted a 12w6 in 1.25 sealed and 2.0 vented, so everyone could see the differences.

The lightened area is the typical usable range of a subwoofer (maybe go up a little higher if you have weaker door speakers..).

You can see this instance, the full range of frequency is louder, and as tom mentioned louder near tuning...

the difference is...
blah blah blah blah blah blah
or
BLAH BLAH BLAH BLAH BLAH

who gives a rats ass, its a great deal

[adamnur]

I currently have a dual 10" ported box with two 10" Alpine Type-Rs, and I'd like to lighten the setup as much as possible without breaking the bank. When taking the subs/box out for auto-x, I can tell how ridiculously heavy it all is. I know a good deal of that weight is the subs, but the big ported box definitely doesn't help.

Would two of these enclosures fit in a decent arrangement in an E36 M3 coupe trunk? What is the optimal arrangement?

I plan on measuring it out myself also, but even then it's tough to tell without the boxes in front of me to maneuver around and test out different arrangements.


edit: Just read above and saw they're all gone Guess I'll be stuck with this elephant in the trunk.

[mybmw135i]

Good to know

[Benny Z]

Good to know

wtf

what's good to know?

[12v Electronics]

wtf

what's good to know?

It is good to know that I have one 12" version that I used in my car and is now for sale since I sold the car

PM me if anyone is interested. It has an Image Dynamics IDQ12v3 in it right now that is for sale too.

[Halston Pitman]

This was a fun thread. Oh wells. Something new and fun will come!

[attack eagle]

I had to re-read it again, so much fun!

[12v Electronics]

This was a fun thread. Oh wells. Something new and fun will come!

I had to re-read it again, so much fun!

Glad I could provide some entertainment.

I also wanted to post that a member of this board bought my demo box with the woofer. I really like the set-up, but is better then letting it sit here on the shelf waiting for me to find a new home for it.

I did find a built 15" version while doing inventory the other day It needs a new home. PM me for a ludicrous deal

[Benny Z]

u think I could fit an 18 in it?

[12v Electronics]

u think I could fit an 18 in it?

No. The front is only 17" tall.

[Benny Z]

sounds doable?

[12v Electronics]

sounds doable?

I don't think so:

[thrty8street]

I just clicked on the link and its down?

[HeartlessHigs]

same here... i got my credit card out for nothing!

[GDizzie]

Can you tell me what kind of "real" problems this box could cause to a subwoofer?

True, I do recommend sealing the box with silicone and using wood glue on the edges, but honestly the adhesive works very well. I tied to take one of them apart after it was built and I had to use a prybar and a hammer to get it apart. When it came apart, the adhesive did not break, but the wood around it did. I would have never believed it if I didn't see it for myself. The nice thing is that it is very easy to replace the factory adhesive with wood glue and it will be built as good as any other 3/4" mdf box can be.

The $30 price is pretty unbelievable, and I can understand your view that it might be too good to be true. I know no builder can even buy the materials for this price.

I don't know why Crunch or any of the other brands you are in charge of developing would be damaged by not having the exact size box, but most speakers are very safe within the airspace available in these boxes.

These boxes are mitre cut and the mating surfaces have routered channels and dowel pins, so I guess these are above your specifications for quality.

The purpose of this thread is to show people an easy and inexpensive way to get a subwoofer in their cars. Custom designed cabinets have an advantage for vehicle application, driver tuning, etc., but will also cost much more money. This is a simple and quality solution- And you can't beat the price.


+1

More than 2 years and no reply. BLAM! Slammed it to the table!