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scaled wo32,anyone wanna host a pic?? (Read 21662 times)
60ndown
Ex Member



Re: scaled wo32,anyone wanna host a pic??
Reply #15 - 12/08/04 at 22:16:33
 
actually its a failed experiment Cry

6.5s just dont do alot of spl or low frequencies welll,any sighn of power and they sh%t themselves!

im sending the 6.5s back,leaving the box in the garage for a while untill i come across a set of 1000wrms 6.5 drivers?

i advise useing a minimum of a 10 inch driver for real bass with authority.
i didnt fail ,i succsessfully discoverd somthing else that doesnt work Grin
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Tyrannicidae
Ex Member



Re: scaled wo32,anyone wanna host a pic??
Reply #16 - 12/08/04 at 22:50:05
 
It looks good anyway. You may just need to stick a solid divider in to shrink the internal chamber so you may get a little extra pressure behind the cone, those 6's may not need but a small fraction of a cubic foot chamber size. Possibly 80-100 cubic inches or so. .
Just some thoughts...Be Well
Alexander Tyrannicidae
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60ndown
Ex Member



Re: scaled wo32,anyone wanna host a pic??
Reply #17 - 12/09/04 at 13:48:44
 
you raise another question i have had for a long time,
when an amp send a signal to a woofer ,the woofer moves forward first? (i think) createing a vacume behing itself (kindof) how is a smaller area behind these 6 ers gonna help the fact thay they sound like they are bottoming out when given any sensible amount of power?

another thing,
i connected an old 8 inch genuine bazzoka tube to the ht system just to get some bass back after removeing the wo21.
weird? the 8 inch tube requires me to turn up the amp about double "or more" to achive any bass,the wo21 was produceing tons of bass with the amp way down? weird this sub buissiness? i woulda thought an 8 inch driver in a ported enclosure would have required less power than 2x 6.5 inchers in sealed?

maybe ill hang onto the 6.5 and do some more experimentatilailism?
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Tyrannicidae
Ex Member



Re: scaled wo32,anyone wanna host a pic??
Reply #18 - 12/09/04 at 15:21:42
 
You are correct, 60nDown, when the first 90 degrees of signal is being read by the coil, there is a vacuum behind the cone. Therefore the larger the rear chamber the less vacuum, and the smaller the chamber the greater the vacuum. It would be similar to having an air break for the cone, helping slow the foward excurson momentum..adding resistance for distance traversed by cone. With extra vacuum it may assist in reducing the over extention of the cone, and may help prevent the tapping/clapping sound you heard on the lower frequencies.
It also works in the opposite direction once the cone has returned back to starting position (back 90 degrees), in the third 90 degree part of the phase as the cone moves from center in the reverse direction the pressure builds and works in the same way. The w21 is like really cool sealed box where its basic nomenclature is somewhat like having a dual 4th order horn. You may also adjust the spacing between the front of driver and the sidewall, if the internal changes do not help as much as you desired.

Just some thoughts,
Be Well,
Alexander Tyrannicidae
The Mini WO is cool
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Tyrannicidae
Ex Member



Re: scaled wo32,anyone wanna host a pic??
Reply #19 - 12/09/04 at 15:33:44
 
I took a second look at your mini horn, I think the front will be fine, just reduce the internal chamber volume.
use a speaker prog to get a better idea of a more adequate internal chamber volume. maybe one of the resident gurus has a formula or suggestion....I dont want to put my foot in mouth on this one  :) as I said earlier with that 6 you may only need appx half or less than half the chamber size.
Alexander Tyrannicidae
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bigmike216
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Re: scaled wo32,anyone wanna host a pic??
Reply #20 - 12/09/04 at 23:14:14
 
I'm a firm believer in experementation. If you want to dry a smaller rear chamber volume, pop something solid in the rear chambers, about the same size, seal 'er up, and see how it does. If it sounds better, then you can figure out how much volume your solid objects took up, then take that ammount out of the rear chamber. If it sounds like poop, then out it comes. Grin
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BigAir
Ex Member



Re: scaled wo32,anyone wanna host a pic??
Reply #21 - 04/06/05 at 02:21:56
 
60, you mentioned that you were planning on scaling this design for 8's.  Did you ever get around to doing it?
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Braggi
Ex Member



Re: scaled wo32,anyone wanna host a pic??
Reply #22 - 07/12/05 at 05:29:56
 
Fine work 60. Perhaps drivers with a greater xmax along with that ability to handle more power are in order.

Thanks for sharing the pic.
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denjah2005
Ex Member



Re: scaled wo32,anyone wanna host a pic??
Reply #23 - 12/03/05 at 09:05:43
 
can you plz. post the photo of your 6.5" co'z i really looking forward making one!
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db_audio
Ex Member



Re: scaled wo32,anyone wanna host a pic??
Reply #24 - 12/03/05 at 21:41:22
 
before you scrap this thing, try DD 6.5's (digital designs) youll love them www.ddaudio.com   and their reasonably priced
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60ndown
Ex Member



Re: scaled wo32,anyone wanna host a pic??
Reply #25 - 12/04/05 at 01:19:14
 
man, thats an old thread revived? currently the wo21 is my h.t sub and very nice, but im gonna see bout them d.d. 6.5s and maybe try it back in the car ?
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60ndown
Ex Member



Re: scaled wo32,anyone wanna host a pic??
Reply #26 - 12/04/05 at 01:23:48
 
hm the dds are 100wrms?

http://www.ddaudio.com/dd/caraudio/woofers.asp?series=W6.5

the peerless drivers in there now are 150? but i bet the dds are way better and take more but im not sure ill bother? its a GREAT h.t. sub right now, sometimes when im watching stuff im seriously distracted by the solid accurate bass lines eminateing from behind the tv Wink   if i ever find a 350 wrms 6.5 driver i may re-consider ???
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« Last Edit: 12/04/05 at 01:24:24 by 60ndown »  
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gexter
Ex Member



Re: scaled wo32,anyone wanna host a pic??
Reply #27 - 12/04/05 at 02:21:38
 
Dude!   wheres the pic?
have you got one that all that weight was not photoshopped on?
Smiley ( thats a joke)

I know things have changed since you orignally built it, and you like it when doing home renos  ;)
I plan on doing the same thing after I build my full scale one first.

I also would like to see you re post the picture of it.

thanks
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60ndown
Ex Member



Re: scaled wo32,anyone wanna host a pic??
Reply #28 - 12/04/05 at 03:45:59
 


im on a diet Smiley

seriously................................. Cry
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gexter
Ex Member



Re: scaled wo32,anyone wanna host a pic??
Reply #29 - 12/04/05 at 06:21:28
 
thats just so sweet!
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