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can a 12" hwk be used in a mini van? (Read 5834 times)
60ndown
Ex Member



can a 12" hwk be used in a mini van?
06/12/06 at 23:50:28
 
high excursion drivers and 2500 wrms, is it a better option than a scaled / modded wo? anyone had great results with a 12" hwk?
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J_Rock
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Re: can a 12" hwk be used in a mini van?
Reply #1 - 06/13/06 at 03:54:31
 
60.  I don't wanna sound like a jerk, but you keep asking everyone else what WE think.  Why don't you spend some time and relax building the sub boxes.  I mean, instead of haveing people preach to you, go learn yourself.  It will be more rewarding for you to listen to each idea you have, and you will be the expert on the forums, "Well when I built my scaled WO it...."

And if thats not reason enough, I totally see you as the kind of guy that learns better when he sees it.  We can tell you a scaled WO will loose its magic, but you will be able to HEAR it in person.

And you also seem like the kind of guy who enjoys tinkering.  You can't tinker with something, really get your hands on it and manipulate it, without having it there in person.
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« Last Edit: 06/13/06 at 03:56:20 by j_rock777 »  
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60ndown
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Re: can a 12" hwk be used in a mini van?
Reply #2 - 06/13/06 at 05:06:03
 
[quote author=J_Rock  link=1150156228/0#1 date=1150167271]60.  I don't wanna sound like a jerk, but you keep asking everyone else what WE think.  Why don't you spend some time and relax building the sub boxes.  I mean, instead of haveing people preach to you, go learn yourself.  It will be more rewarding for you to listen to each idea you have, and you will be the expert on the forums, "Well when I built my scaled WO it...."

And if thats not reason enough, I totally see you as the kind of guy that learns better when he sees it.  We can tell you a scaled WO will loose its magic, but you will be able to HEAR it in person.

And you also seem like the kind of guy who enjoys tinkering.  You can't tinker with something, really get your hands on it and manipulate it, without having it there in person. [/quote]

i dont want to waste time and money building things that wont work.i get my pleasure from listening to the sub not building it.
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John in CR
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Re: can a 12" hwk be used in a mini van?
Reply #3 - 06/13/06 at 07:22:57
 
40&up,

My guess would be to use the WO.  My experience has been that high excursion drivers don't fare as well in the HWK.
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HT-EXT
Ex Member



Re: can a 12" hwk be used in a mini van?
Reply #4 - 06/13/06 at 15:41:35
 
My buddy had some Kicker Comps and decide to build the HWK12. It turn out better than average. It is the first HWK that you could bounce quarters off of and I don't mean throwing them at it either. Four Kicker Comps quad loaded caused the sides to vibrate like the depth charges did to the sub in U571. The guy got lucky and his wife let him bring it in the house to hook to the HT so we did not get a chance to try it in my van. The HWK12 was putting out about 125db with only +300w and could take more. If your talking 2500w to a HWK12(w/Kickers) you are on your own. I need my hearing for furture experiments. I would try it regardless just to see the devastions that occurs and let me know how loud it could actually play in that small a space like a van.   HT-EXT
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« Last Edit: 06/13/06 at 15:42:18 by Joe_Eaton »  
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bassboy
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Re: can a 12" hwk be used in a mini van?
Reply #5 - 06/13/06 at 16:55:05
 
I didn't know where to put this anymore, as there are a few different threads now addressing this question.

Just remember, with the power you are planning on giving the box, whichever one you choose, I'd plan on at least doubling up on the box material.  5/8 mdf is simply not strong enough to sustain the power you are talking about.
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Lee in Arkansas
Ex Member



Re: can a 12" hwk be used in a mini van?
Reply #6 - 06/13/06 at 19:26:39
 
High Excursion and 2500watts? WOO! Cheesy I'd do it just to say I did it. Grin If you don't like it, someone will buy it. 8)

Don't forget to mount it horizontally on a tripod with the top port facing out a window with a potato in there. Just a nice thump in the bass and you'd really rattle the window of the car next to you. Tongue

EDIT- With that much power, and the excursion, I'd go at least 1" MDF, maybe even some 2x4's on the outside(I don't care about looks).
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« Last Edit: 06/13/06 at 19:27:39 by Jet-Lee »  
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jj420
Ex Member



Re: can a 12" hwk be used in a mini van?
Reply #7 - 06/13/06 at 19:35:49
 
HWK-potato gun hybrid  :-*

Lee - U R genius, good carjacking deterrent too...
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Lee in Arkansas
Ex Member



Re: can a 12" hwk be used in a mini van?
Reply #8 - 06/13/06 at 19:44:20
 
Auto-loader with a roll on a double-kickdrum goin....lol.....I think too much. Tongue Tongue Tongue Tongue Tongue

60....where ya at? (Makin' a tripod)
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« Last Edit: 06/13/06 at 19:44:59 by Jet-Lee »  
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60ndown
Ex Member



Re: can a 12" hwk be used in a mini van?
Reply #9 - 06/13/06 at 20:50:55
 
potato in teh port lol Wink, 15" housewrecker in the mini van was good(windows up and down) different to the db12 in that the db12 is concentrated close to the box (its easyer to identify where the bass is commeing from...the rear of the van), with the hwk in the van the bass was just there / everywhere,very hard to locate the box.im going to build a hwk 12 (non modded Wink) i figure with the amount of phase and orientation variables in the desighn im almost guarenteed to get something i like, and, its a wee bit smaller than a 43 x43 x14.5 wo, commeing in at 48x14....ish.and the 2500 wmrs is just 'on tap' i dont drive around with the amp anywhere near full tilt, but occasionally when im in the mood, i can crank it and the amp doesnt 'clip' no matter how bad i am Smiley its like haveing 1000 horse power in your ride, you dont have to drive at 250 mph to enjoy the powa!
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Lee in Arkansas
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Re: can a 12" hwk be used in a mini van?
Reply #10 - 06/13/06 at 21:37:49
 
So, as it stands, the 15" hwk was better than a modded WO?
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bassboy
Ex Member



Re: can a 12" hwk be used in a mini van?
Reply #11 - 06/13/06 at 21:42:01
 
Don't forget the bracing and extra panel thickness.  2500 watts is like 3.5 horsepower, almost.  That's a lot of power to contain in a wood box.  Unless, of course, you want your box to sound like wet dog farts.
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60ndown
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Re: can a 12" hwk be used in a mini van?
Reply #12 - 06/13/06 at 23:05:45
 
[quote author=Lee in Arkansas  link=1150156228/0#10 date=1150231069]So, as it stands, the 15" hwk was better than a modded WO? [/quote]

a 15" housewrecker (2 x 15" jbls)is comparable to but different to a 12" db (1 x 12" ss rl-p), in a mini van (300 cubic feet) im sure in a trunk or regular car performance would be very different.
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60ndown
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Re: can a 12" hwk be used in a mini van?
Reply #13 - 06/13/06 at 23:07:55
 
[quote author=bassboy  link=1150156228/0#11 date=1150231321]Don't forget the bracing and extra panel thickness.  2500 watts is like 3.5 horsepower, almost. [/quote]

like riding a bicycle then Roll Eyes
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« Last Edit: 06/13/06 at 23:08:10 by 60ndown »  
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John in CR
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Re: can a 12" hwk be used in a mini van?
Reply #14 - 06/14/06 at 01:44:45
 
You'll need a steep high pass rumble filter probably in the 30-35hz range if you want to pump significant power into it.
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60ndown
Ex Member



Re: can a 12" hwk be used in a mini van?
Reply #15 - 06/14/06 at 02:29:30
 
[quote author=John in CR  link=1150156228/0#14 date=1150245885]You'll need a steep high pass rumble filter probably in the 30-35hz range if you want to pump significant power into it. [/quote]
your sujjesting hwk offers no controll over the driver below 30hz?
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John in CR
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Re: can a 12" hwk be used in a mini van?
Reply #16 - 06/14/06 at 02:39:54
 
[quote author=60ndown  link=1150156228/15#15 date=1150248570]
your sujjesting hwk offers no controll over the driver below 30hz?
[/quote]

That's the nature of vented enclosures.  Below tuning the drivers unload.  At least with the WO, you've got the sealed chamber side helping control the cone, but again, there's no way you could apply full power and a 30hz signal even with the WO.
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60ndown
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Re: can a 12" hwk be used in a mini van?
Reply #17 - 06/14/06 at 05:44:25
 
[quote author=John in CR  link=1150156228/15#16 date=1150249194]

That's the nature of vented enclosures.  Below tuning the drivers unload.  At least with the WO, you've got the sealed chamber side helping control the cone, but again, there's no way you could apply full power and a 30hz signal even with the WO.
[/quote]

but the hwk is 'kindof' sealed with a driver in each end of the middle chamber? or something linke that Roll Eyes
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Lee in Arkansas
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Re: can a 12" hwk be used in a mini van?
Reply #18 - 06/14/06 at 05:46:59
 
Isn't the HWK just as BandPass as the WO?
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John in CR
Ex Member



Re: can a 12" hwk be used in a mini van?
Reply #19 - 06/14/06 at 21:03:55
 
The HWK is a 6th order bandpass and not like the WO at all where the back chambers are sealed.  In the HWK, the center chamber is sealed, but it's a shared airspace with no change in pressure because it only provides an isobarik coupling of the two drivers.
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Lee in Arkansas
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Re: can a 12" hwk be used in a mini van?
Reply #20 - 06/14/06 at 21:08:21
 
Isn't it still harder to unload it?
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John in CR
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Re: can a 12" hwk be used in a mini van?
Reply #21 - 06/15/06 at 00:09:07
 
[quote author=Lee in Arkansas  link=1150156228/15#20 date=1150315701]Isn't it still harder to unload it? [/quote]

Probably only compared to having only 1 driver in a 6th order bandpass due to the decreased Vas.  I have noticed that my quad loaded HWK's can go louder than with 2 drivers without banging the back plate despite the inherent higher tuning.
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60ndown
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Re: can a 12" hwk be used in a mini van?
Reply #22 - 06/15/06 at 01:09:23
 
[quote author=John in CR  link=1150156228/15#19 date=1150315435]it's a shared airspace with no change in pressure [/quote]

unless you wire them out of phase?
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J_Rock
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Re: can a 12" hwk be used in a mini van?
Reply #23 - 06/15/06 at 01:56:57
 
If you were to wire the drivers so that they fire the opposite ways, the movement would be dampened as well as those same two drivers in as single sealed chamber the size of the middle chamber.  In other words, you would gain control over the drivers, yet loose output from overdampening them.
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John in CR
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Re: can a 12" hwk be used in a mini van?
Reply #24 - 06/15/06 at 04:37:54
 
[quote author=60ndown  link=1150156228/15#22 date=1150330163]

unless you wire them out of phase?
[/quote]

Tried it.  Sound sucked.  It's not even the same as sealed 1/2 size center chambers for each driver because the 2 drivers are each seeing a differently tuned vented chambers on the other sides of their cone, so they move differently.
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« Last Edit: 06/15/06 at 04:38:52 by John in CR »  
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60ndown
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Re: can a 12" hwk be used in a mini van?
Reply #25 - 06/16/06 at 00:50:10
 
[quote author=John in CR  link=1150156228/15#24 date=1150342674]

Tried it.  Sound sucked.  It's not even the same as sealed 1/2 size center chambers for each driver because the 2 drivers are each seeing a differently tuned vented chambers on the other sides of their cone, so they move differently. [/quote]

but all the rules change in c vehicle no?
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John in CR
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Re: can a 12" hwk be used in a mini van?
Reply #26 - 06/16/06 at 04:52:51
 
[quote author=60ndown  link=1150156228/15#25 date=1150415410]

but all the rules change in c vehicle no? [/quote]

No, the same rules apply, just a much smaller room.  If you're outside of the car and a window is open then you'll get some box within a box behavior.
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