im not sure i could ever own an imperial, i think id burst out laughing every time i looked at it

I think in a van, I would go for the SO version?
What do you guys think?
Possibly two of them with 1 sub in each?
Would have to figure out how they would fit and fire though, it could be a beast and a half to squeeze them in and see what happens. I saw a "triple Band Pass" install today that was rather interesting. Doing some high 160s on a TL meter!
Hmmmmm what next?

lol

Robert

LOL!
Thats why I don't have a mirror in my house 60
After I look at it I never get anything done.

They are a strange animal those Imperials. And I am sorry to say I still think Imperials in a van is silly.
An SO in a van is even more silly although it would look nicer.

However either would make a cool picture for a desktop

So where the 18" badboys now?

60 r u sayin it the box i made for the 18's ...wouldnt it sound the same? i am looking to make a wo for 12" ot see how they should sound. i want to do 4 12 of a ed nine4 for my wife so she could be in the lowest class. im ganna try to finish the slot port this weekend ??? what do we need to test on the motherless goat wo box?

[quote author=mrezstreet  link=1160835651/45#57 date=1163477696]the slot port kills....it was shaking my shop...da house, then into van.....and oh my thek made the wiper blades bounce and my pop jump out of the cup holder [/quote]

Yeah baby!  That's what I'm talking about.

Did you scale everything?  Hehe!   ???

10" WO = 36" x 36" x 13.5"

Upscale:

    18 / 10 = 1.8
    1.8 - 1 = 0.8
    0.8 * 100 = 80%

36" + 80% = 64.8"

13.5" + 80% = 24.3"

Oh and:

.75" MDF + 80% = 1.35" = heavy*

It seems to me that if you don't increase the material thickness than the opening in the throat will be messed up.  Yes, the center or tip of the panel in the throat will be X inches from the corner of the box, but it's width will not be to scale and will change something.  Also, the bracing in the rear chamber won't take up a properly scaled volume and will change things yet again.

64.8" x 64.8" x 24.3"  with 1.35"

*BONZAI

Well, that's how I would try it anyway.  

This box would be helluva tough, but not as tough as he, Mr. T!

wont work...my table saw and tape only have in...no cm .....and the sun shines on the same subs all the time. i wanna try a bp.....i have a 12 coming that is very good buy and i want to play with a bp for it.....for my 88 astro cargo i just got. "cargostro" what type of tuning would you go with and is winisd a good program for bp? im ganna look at the planys you found. i might just run a bunch of $25 12"

[quote author=mrezstreet  link=1160835651/60#62 date=1165281795]wont work...my table saw and tape only have in...no cm .....and the sun shines on the same subs all the time. i wanna try a bp.....i have a 12 coming that is very good buy and i want to play with a bp for it.....for my 88 astro cargo i just got. "cargostro" what type of tuning would you go with and is winisd a good program for bp? im ganna look at the planys you found. i might just run a bunch of $25 12" [/quote]
holeee shiznit, is it that difficult to convert to inches ?  :-/

That cab is some sort of Bass Bin for clubs. There weren't any comments about it as far as driver, power, tuning or anything like that. All I could find was that it was indeed designed for 18" subs. I thought it was neat that it is loaded that way. Think about the size of those ports when you say small though. 20" tall by 2.5" or so (haven't done the conversion, but there are calculators all over the net for that).

Take a look at the thread titled "8 Fusion 12s" that guy is doing band pass in an Astro and we have some pretty cool drawings in that thread so far too. One or two of them are not particularly BP oriented, but close. It is a fine line once the enclosure gets to a certain size. I am still trying to figure out that 3 chambered BP the guy did with a bunch of 12s over on termpro too. That thing is pretty wicked.
Check you later man!

Robert

Your math is off
piR2 = 3.1415(5)srq = 78.5 sq inches or .55 sq ft.
piR2 = 3.14.5(9)sqr = 254.46 sq inches or 1.77 sq ft.

that means that to scale the enclosure to go from a 10" to a 18" you need to increase the sizes 3.2 times.

in other words your 36X36" box just became 115X115".  I hope you have a semi to put this in.

[quote author=Matthew  link=1160835651/60#60 date=1164573473]Did you scale everything?  Hehe!   ???

10" WO = 36" x 36" x 13.5"

Upscale:

    18 / 10 = 1.8
    1.8 - 1 = 0.8
    0.8 * 100 = 80%

36" + 80% = 64.8"

13.5" + 80% = 24.3"

Oh and:

.75" MDF + 80% = 1.35" = heavy*

It seems to me that if you don't increase the material thickness than the opening in the throat will be messed up.  Yes, the center or tip of the panel in the throat will be X inches from the corner of the box, but it's width will not be to scale and will change something.  Also, the bracing in the rear chamber won't take up a properly scaled volume and will change things yet again.

64.8" x 64.8" x 24.3"  with 1.35"

*BONZAI

Well, that's how I would try it anyway.  

This box would be helluva tough, but not as tough as he, Mr. T! [/quote]