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Clamshell drivers and WO size (Read 5032 times)
HT-EXT
Ex Member



Clamshell drivers and WO size
12/13/05 at 15:40:04
 
I was thinking of building a WO36 and had a few questions. First do you have to clamshell the speakers(4 drivers) directly together or can put one on each side of the baffle leaving some extra space between the woofers. Also I have read that if you go with the 36" depth (vs. 24" and up) the WO can go lower(Hz) and louder. Is this true? I know speakers will also be a factor in Hz and output. Almost everyone says build it BIG!!!.  Any help would be appreciated.
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J_Rock
Ex Member



Re: Clamshell drivers and WO size
Reply #1 - 12/13/05 at 16:04:43
 
CLamshelling the drivers with a piece of wood between is a-ok.  No problems there.

ANd the WO's that I have built full size(36 x 36) outperform the 24" ones in the lower frequencies, about everything else is comparable though.  The 36 x 36 just has more impact the further down you go.  the 24 will do it, but compared to the 36 it sounds kinda hollow.  

The only way I can describe it is kinda like ice cream.  The 36 inch version is like nice cold icecream, whereas the 24 is kinda melty in the lows.  but they still taste way better than other boxes. lol.
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HT-EXT
Ex Member



Re: Clamshell drivers and WO size
Reply #2 - 12/13/05 at 17:05:52
 
THANKS JRock the info helps. I want to make sure we are on the same page. I would like to put one on the sealed chamber side and one on the ported side with the double thick speaker baffle in between. Is this set up O.k.? Do you have any suggestions for subs. I would like to keep the price between $40 to a $100 each. I like some of the Daytons but unsure of the ideal numbers for the WO36 enclosure. (Fs/Vas/Xmax/Qts)                       THANKS







 











 
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« Last Edit: 12/13/05 at 17:20:53 by Joe_Eaton »  
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60ndown
Ex Member



Re: Clamshell drivers and WO size
Reply #3 - 12/13/05 at 17:16:28
 
[quote author=HT-EXT  link=1134492004/0#2 date=1134493552]THANKS JRock the info helps. Do you have any suggestions for subs. I would like to keep the price between $40 to a $100 each. I like some of the Daytons but unsure of the ideal numbers for the WO36 enclosure (Fs/Vas/Xmax/Qts).  











 THANKS [/quote]

the wo works with almost any good subwoofer, the wo32 is more picky.get 4 good 10s and get ready for some serious bass. Grin in fact if you have alsmost $400 to spend, buy 2 of steves/decwares 10" drivers.
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HT-EXT
Ex Member



Re: Clamshell drivers and WO size
Reply #4 - 12/13/05 at 17:47:43
 
Appreciate the info 60. Do you think two of Steve's 10" would out perform four Classic Daytons or four Series II. I am looking at both but when I start an experiment it is nice to start on a budget(Classic Daytons) and then move up from that point if needed. Would Steve's 10" make a huge difference for the cash?     THANKS
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60ndown
Ex Member



Re: Clamshell drivers and WO size
Reply #5 - 12/13/05 at 18:07:09
 
[quote author=HT-EXT  link=1134492004/0#4 date=1134496063]Appreciate the info 60. Do you think two of Steve's 10" would out perform four Classic Daytons or four Series II. I am looking at both but when I start an experiment it is nice to start on a budget(Classic Daytons) and then move up from that point if needed. Would Steve's 10" make a huge difference for the cash?     THANKS [/quote]

steve KNOWS audio. i have never actually heard  his drivers, but i bet they are much better (dryer, faster, deeper) than most subs available.so i suppose it depends what you want. you want the best sound possible? go with the decwares, you want to save money and still sound good , try something else.personally i dont see subwoofers as an experiment, i decide what it is i want and then go get it. the wo is a fantastic desighn that needs NO MODIFICATION to produse tons of quality bass.
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60ndown
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Re: Clamshell drivers and WO size
Reply #6 - 12/13/05 at 18:08:26
 
what will you be useing your wo for? car? home? band? disco?
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60ndown
Ex Member



Re: Clamshell drivers and WO size
Reply #7 - 12/13/05 at 18:11:42
 
[quote author=HT-EXT  link=1134492004/0#4 date=1134496063]Appreciate the info 60. Do you think two of Steve's 10" would out perform four Classic Daytons or four Series II. [/quote]

out perform? you want volume or quality? what kind of 'performance' are you after?
either way probably yes.
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HT-EXT
Ex Member



Re: Clamshell drivers and WO size
Reply #8 - 12/13/05 at 19:27:39
 
I know this is going to sound crazy but I plan on using the WO36 in conjunction with my HWK15s to try and get the ultimate blend of bass mostly for Home Theater. Of course music and entertaining friends will surely be in the picture. I was looking for something with high SPL and low bass to put directly in front me that could be mistaken for furniture. My HWK15s are locate behind me and have tendency to be overwhelming. I looking to match or come close to their performance.


   THANKS  
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« Last Edit: 12/13/05 at 19:34:07 by Joe_Eaton »  
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HT-EXT
Ex Member



Re: Clamshell drivers and WO size
Reply #9 - 12/13/05 at 19:32:38
 
OH YEAH 60 can I put the woofers in opposite chambers with the speaker baffle between them instead of directly clamshelling them together.
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« Last Edit: 12/13/05 at 19:34:55 by Joe_Eaton »  
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BigAir
Ex Member



Re: Clamshell drivers and WO size
Reply #10 - 12/13/05 at 22:05:04
 
The WO is very forgiving as far as drivers.  With that said, there are a few things that you should understand.  The smaller that you make the sealed chamber, the higher it will be tuned.  As far as sound quality and output, if you use drivers with a higher fs, you can actually get some gain by using a smaller WO because they will be working towards a common goal.  If your drivers have a lower fs, there's no question that the bigger WO would give you the best output.  That's why Steve suggests modeling it as a 4th order BP to really zero in on the sealed chamber.  IMHO clamshelling can yield great results as long as you have enough power and wire them up properly for your amp.  It probably wouldn't matter much, but I would bolt them directly together without any space between.  However, that would again depend on your drivers.  Sometimes that's impossible because of surround sizes.  Remember, clamshelling will make the sealed chamber seem larger and should lower the tuning a little.  From my experience it will give the whole box more depth and speed which is always a good thing.  At the moment, my WO uses some 10" Dayton Quatros.  Great speaker for the price and sounds fantastic in a WO.
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60ndown
Ex Member



Re: Clamshell drivers and WO size
Reply #11 - 12/14/05 at 00:38:21
 
[quote author=HT-EXT  link=1134492004/0#8 date=1134502059]I know this is going to sound crazy but I plan on using the WO36 in conjunction with my HWK15s to try and get the ultimate blend of bass mostly for Home Theater. Of course music and entertaining friends will surely be in the picture. I was looking for something with high SPL and low bass to put directly in front me that could be mistaken for furniture. My HWK15s are locate behind me and have tendency to be overwhelming. I looking to match or come close to their performance.


   THANKS   [/quote]

in that case i would say your going down the wrong road, i built a h.w. with 2 x older 15" jbls, it is amazing. i have no doubt that a 'working' h.w.has the ability to make people litterally 'jump out of their seats' with IMPACT.but its an odd desighn and i guess its possible that a small mistake in constuction or driver selection / orientation can make it not work. before you spend more money try unplugging one of your hws, and experiment with just 1 in the room, try several different locations within the room. if your sub bass is already overwhelming adding another subwoofer will just compound your problem.
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HT-EXT
Ex Member



Re: Clamshell drivers and WO size
Reply #12 - 12/14/05 at 11:45:15
 
KILLER INFO Big Air that is exactly what I needed to hear. My set up revolves around Home Theater mostly. Also all my stuff is in a concrete bunker(basement) and space is limited. 60 let explain a little more. The HWKS are behind me because there is not any other place to put them that they would not be in the way. There is a table in front of my chair with an old RCA 12" powered sub beside it pointed directly at me. When I think of Home Theater I think of a perfect blend of all the sounds(bass/mids/highs) just like music. The RCA is no match for one HWK let alone two. I not talking SPL but low bass response. My goal is to replace that table and RCA with the WO36. My main problems are limited space and money (whats the chances of that). I do not want any speaker(LFE) in my system to be louder than another. Of course when talking bass that is already a loud subject with HWK. By adjusting amps and crossovers I would like everything (HWK/WO36) to blend together. THANKS for the info 60.
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« Last Edit: 12/14/05 at 15:09:11 by Joe_Eaton »  
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HT-EXT
Ex Member



Re: Clamshell drivers and WO size
Reply #13 - 12/14/05 at 13:11:33
 
Big Air what do you mean by IMHO calmshelling because I am a stup. Also how many Quatros do you use and what amp? What do you consider to be a low fs for a 10" woofer?THANKS
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« Last Edit: 12/14/05 at 13:13:47 by Joe_Eaton »  
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gexter
Ex Member



Re: Clamshell drivers and WO size
Reply #14 - 12/14/05 at 13:16:11
 
sounds like fun
My two cents is agreeing that the WO is forgiving and extremely flexible in adjustments.

I have not built a big HWK like some have so all I know is what I read. I find it on the little ones inflexible and unforgiving to the same extent as the the WO.

Love the darn things.

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