OK, how about this...I have 6-JBL GT150 15's. I wanna built the wo and use them if possible...3 enclosures and use 6 subs. OR i huge wo and use 3 per side. any suggestions... thanks DAN

[quote author=db_audio  link=1133408581/0#0 date=1133404981]OK, how about this...I have 6-JBL GT150 15's. I wanna built the wo and use them if possible...3 enclosures and use 6 subs. OR i huge wo and use 3 per side. any suggestions... thanks DAN [/quote]

i built a housewrecker with older jbl 15s' it worked very well.seriously good bass and tons of it.

Dan, have you considered Imperials?

That is an Imperial!
Se Imperial on this website.https://www.decware.com/imperial.htm

Circlomanen

can you not flash those things around! I get all sad inside because I can't buid one for my house.

True true

which is why I suggested giving them to me! please?

Twelve 15s? ???
That makes two Imperials, an iso-loaded HWK15, two Wicked Ones, scaled up to 54x54x21.
Some of us are dying to hear a scaled up WO with 15"ers in it.
You'll get right on that, right?  :D

My only problem with a four 15" WO is that I don't have a fork lift anymore. I used to have nothing but fun stacking my 350 lb folded horns up. Those were younger and more energetic days.

Last week I set my 2 iso-loaded 10" WOs up in a club for some friends and everyone (including me, a fairly old, salty crusted, PA tech type who has seen everything, I thought) was very impressed. It was the first time I actually heard them with live music. They had an old Peavey 400W/channel amp and the WOs really sound powerful sitting on the floor in a small club (about 350 seats).

This afternoon I'll be setting them up in a place more than 4 times larger. Since it is Jack's favorite "sounding" gig spot, I'm calling tonight the WO/Jack Acid Test. They will still have way more BASS than ever before, so I expect everything to be "all good". So far, I am very pleased with the 10" WO.

With 15"ers the size will be a concern. I have read about someone planning a 48" WO project using 15" drivers, but never a follow-up thread.  I know scaling all 3 dimensions for a 15" comes out about 54" X 54" X 20", but I don't know if it's necessary to scale in 3 dimensions for a great sounding box. My plans, in the spring, are to build a set of Imperials and a 48" X 48" X 18" WO using a surplus of JBL E140s I have laying around from the old days. As yet, I've not done it.

My point is that you are sort of on your own, but with an audience of many "Monday morning armchair quarterbacks" ready to tell you what to do. I hope it all happens soon so we can start some history here.

Some old threads:

https://www.decware.com/cgi-bin/yabb/YaBB.cgi?board=Wicked;action=display;num=10...

https://www.decware.com/cgi-bin/yabb/YaBB.cgi?board=Wicked;action=display;num=10...


Looks like BigAir is the only one to actually build a 15" WO and post pics, but notice the radically angled baffle board.

For SPL-clamshelling or iso isn't going to help, just raise the level of power needed to acchieve a certain SPL.

The only benefit for iso is decreaseing vas bay half and increaseing power handling before distortion.

with 12 15s though, if you have the power clamshell away...

[quote author=60ndown  link=1133408581/15#15 date=1133624719]please build a 15 clamshelled wo scaleing all 3 dimensions [/quote]

What the  :o is this?
My very first post on this forum, I asked the same question and you told me not to bother. Have you become totally light headed today or have I finally worn down your resolve.

[quote author=60ndown  link=1133408581/15#15 date=1133624719]please build a 15 clamshelled wo scaleing all 3 dimensions [/quote]

Maybe I should say "Who the Hell is this and what has he done with 60?"

lol, you guys
i dont know what it is, my experiences so far with building steves desighns are that they work, very well, all of them.i wanted good quality bass and loud, and i got it.but dirt reading some of your VAST experience leads me to believe you are in a leauge of your own. how many people have had the oppertunity to play with the rigs you have and over the period of time?..not many i bet. im sure when you move from 2 watts in a room to 20,000 in an arena things must change? everybodys enthusiam  for the 'excess' when it comes to bass, has obviously rubbed off on me- "thanks" . im 42 next year and i have built 6 subwoofers this year and an i.b install in my car  if you guys dont stop talking about insane bass rigs that make your neibour wanna vomit when it hits low and makes yer beer froth over as you walk by the sub, im going to be unable to resist building more next year, and im really not sure my wife can take it? i dont post as often nowdays cos both my in door and in car systems satisfy for now? but i frequently read all your posts and laugh and drool and wonder ??? thanks to all of you bassheads for not leaving me out there....here, on my own.....................  i wonder what 10,000 real watts on a pair of some of these modern subs (3,4,5000wrms capable) in a modded wo would feel like? or a hw  i would love to have a sub make me vomit @20 hz, seriously i might not wanna do it twice but id love to feel that much pressure that low

and mine

Your original statement still stands as good advice 60.
I have taken on the same stand, on your first build anyway!
DD has loads more experience than I and I am sure keeps up on his stuff. I mean what else has he to do during the day ( thats a joke)
After I screwed up steves subs I took your advice 60 and life improved to the point where I started modding after I knew what it was supposed to do.
DD keeps my head on my shoulders and helped me from making some time consuming mistakes that would have frustrated the heck out of me.

both you guys are from differant worlds but none the less, your rocks in mine.

oh ya
Since when is your present car system based on steves design 60....... thats all you!

I have an I.B. in my wagon and it sounds awsome but it just does not get loud enough for the times a guy likes it loud.

Any other sub takes up way too much room to equal it in SQ and low extention and  that includes Decwares.

It is built into the rear well of the station wagon. after my alpines were stolen I did not want my system out for people to see.
I recessed an ADS sub plate and covered it with material to stealth it. you would never know it was there. all my other crossovers and amps were recessed into the same well as well.

anyway I am screwing up this thread so later!

[quote author=gexter  link=1133408581/15#28 date=1133678019]I have an I.B. in my wagon and it sounds awsome but it just does not get loud enough for the times a guy likes it loud.


[/quote]

my amp is class d and puts out about 6oo wrms (stock electrical)and the 12" sub takes 500wrms has an fs of 18....yes 18 and an x max of 24.2 mm. it gets loud and low

http://www.soundsplinter.com/specs/rlp12_specs.htm

also, ported version for SPL:

port schmort

i bought my wifey a new expedition last week and im keeping her old one! which has a ton of gear in it already! i had 9 of the 15's in it (LOUD) but took it out 'cause we WERE gonna trade it...we didnt! YEAH!

my point is i wanna make this thing just stupid loud...louder than the 9 i just took out. Im hoping that the Wo is the ticket!

if i remember correctly my 9 15 box is around
50W X 33H X 30L

I figured i could have them firing toward the roof, they might load off the roof pretty good...just thinking.

oh yeah, those drawings wernt TOO crappy! LOL!

If your thinking stupid loud and stupid good don't take the chance on modifications. you have the area and the power to make the WO put out.
If you do the J_Rock tilted sub idea I would fire them off the roof also, but tilt them toward the back on your first trial run.

Excess is fun but rarely practical. But what kinda fun is practical?
Hey!  that could be my new tag line

too bad I am getting to practical  :(  thats just no fun!!  

If you could give me the width of you epedition I could figure out the WO chamber's and the original designs's ported frequency.  and then design the 6th order BP with smae chambers and front port to create what would be the supposed correct port.

(transfer fucntion frequency to get even more bass. )

I have not heard that term before, are you talking about wavelength, or what exactly so I don't have to guess.
even a link to where you got the terminology would be good.

I had to learn so much stuff over the last month or two I have holes in my knowledge. and my life keeps interrupting me on top of that.

thanks

hold the thought bout port frequency, I just remembered something. SO I gotta check something else.

Transfer function is kinda like your entire car's resonant frequency. The problem is that as power goes up the cars resonant frequency goes up too, hence you get a function of resonant frequency vs. power output.  Kinda like this:

With my subs barely playing say at 45 hz, my car rattles like all hell and there is a noticeable increase in output going from 35 to 50 at 45 hz.  My car resonantes there at 50 w or whatever.  If I crank my WO all of a sudden my car doesn't resonant at 45 as much, the noticeable uncrease is at 55hz.  

At least its something like that.  I normally say resonant frequency of the vehicle but I get slack from a different forum for saying that...

cool...thanks. ill try to do some of the math today at work...unless youve already done it

what other forum are you on?