what should I be asking a box builder?

[surreyjack 10+ year member]

so I found a guy on ebay that builds boxes for fairly cheap and I thought I would give him a shot. he claims to have been building boxes for 10 years+.

this is going to be my first box. I already know everything as far as cu ft and tuning, just not what materials he should be using and stuff like that.

heres a link to his type-r box hes selling

Alpine type-R dual 12" ported sub box - eBay (item 230514125259 end time Sep-19-10 16:42:24 PDT)

Edit: A little information about my set up

Either going with 2 12" type-r's (swr-1243d, or 2 12" DC LVL 3's both dual 4 ohms wired down to 1ohm)

-Mb quart DSC1500.1D amp. Will be running anywhere from 800-1200 watts.

-Its going into a 2008 altima sedan. My current box is LxWxH (inches) 32.5x17x15.58. I would prefer it be this size its a nice fit for my trunk and I have a little space left over. Width wise it can be bigger though.

-I'm going for a SQL set up.

Here's some info about the subs

Alpine SWR-1243D'sMaximum Ported Box Volume 2.0 cubic feet

Xmax (millimeters) 20 mm

Top Mount Depth 6-3/8"

Shallow Mount Installation No

Cutout Diameter 10-13/16"

Alpine SWR-1243D 12" Type-R Car Subwoofer/Sub (SWR1243D) (click on specs)

DC Sound labs LVL 3 subwooferSuggested ported: 1.5³ ft

Xmax: 22.5mm

DC Audio - Specifications (scroll down to 12" lvl 3)

Click to read more...

 

[RAM_Designs 5,000+ posts]

Box is too small, port is too skinny/small.

 

[Pyro_By_Nature 5,000+ posts]

Box is too small, port is too skinny/small.

While you are correct, I don't think he was asking about that particular box.

 

[RAM_Designs 5,000+ posts]

While you are correct, I don't think he was asking about that particular box.

True, I didn't read closely enough. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[surreyjack 10+ year member]

While you are correct, I don't think he was asking about that particular box.

Hey I actually was. I have to track down a local dealer that sells DC subs otherwise I'm just going to go with the type-r's since I've used the older ones and loved them.

Box is too small, port is too skinny/small.

Thanks. Whats a good sized port? For type-rs and lvl 3's.

Edit: I'm going to add more information about my set up, I forgot to before.

 

[thisistiny 10+ year member]

Good price.. i might use him.

 

[surreyjack 10+ year member]

Good price.. i might use him.

Really is. He quoted me $115 shipped on a box for my friend built to his specs.

 

[on1wheel01 10+ year member]

That box looks meh to me. I dont even see any sealant on the inside joints. Box looks nice but looks just like any other pre fab box. Sure maybe he builds them but I would suggest finding someone on here or what not and having them get you right,these are better sized ports. If you we're in nc i'd help u out, but i dont ship boxes. Here is a few of mine, im no pro by any means and many many guys on here have way more kills than I do, but I think I do a good job.

 

[surreyjack 10+ year member]

If somebody credible is willing to build me a box and ship it to either Canada, or to Blaine, Washington (my friend lives there) I may just go with them.

 

[RAM_Designs 5,000+ posts]

Well, do ~2.25ft^3 for each Type-R, and 1.75-2ft^3 for each lvl3 if you're going to get someone to do it for you.

 

[Deeper_shades 10+ year member]

If I was me, Id ger RAM_designs to design it, and id build it my self....

 

[DMP 10+ year member]

That box looks meh to me. I dont even see any sealant on the inside joints. Box looks nice but looks just like any other pre fab box.

x2. Looks like a little sealant in there, but who knows.

I build boxes too. Never shipped any out tho.

 

[surreyjack 10+ year member]

x2. Looks like a little sealant in there, but who knows.
I build boxes too. Never shipped any out tho.

PM me or post here how much you would charge for a basic ported box for 2 12s.

I asked him about sealant inside the box he said he could use liquid nail for free, and if thats not good I'm sure I could pay a little extra to get something better. Whats a good port size?

 

[surreyjack 10+ year member]

Just measured my current box. It fits nicely in my trunk, what do you guys think size wise

LxWxH (inches)

32.5x17x15.5

 

[RAM_Designs 5,000+ posts]

~3.89ft^3 before sub/port displacement...nowhere near big enough for a pair of 12's. It'd be good for a pair of 10's though, or a single 12.