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scale down - relocate drivers *PICTURE* (Read 10033 times)
Jet-Lee
Ex Member



scale down - relocate drivers *PICTURE*
11/01/05 at 19:58:56
 
What would happen if you scaled down the WO, to about 24-28 inches square, then relocated your drivers to the very front panels of the horn, so they're facing towards each other and somewhat forward? It would in essence be a regular ported box, but the ports would be the horn. The chamber would be 1-1.6 cubic feet.

Thoughts?
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« Last Edit: 11/10/05 at 23:20:08 by Jet-Lee »  
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gexter
Ex Member



Re: scale down - relocate drivers
Reply #1 - 11/01/05 at 22:09:38
 
Only guessing
more SPL and more high freq problems
What about your volume?
Seems like a lot of work for a back loaded horn thats too darn narrow
Lots and Lots of variables.

I would not run a wave past the dirvers. You could port the front of the box. I hear that it can increase SPL.

Easy to try and fix.
The small boxes in the the WO are peaky and more fussy. they do seem to hit pretty hard.
There are many people that have messed with the smaller box in the threads with mixed results.
I don't have a beef with WO mods its hard to really screw up, thats how good the design is.

Gex
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Jet-Lee
Ex Member



Re: scale down - relocate drivers
Reply #2 - 11/03/05 at 16:35:33
 
I'll be fabbin one up tonight. Won't be special, as it's just a "What happens if" project. But I'll let you know tomorrow.

I got pics of my previous boxes, and I'll take pics of this one too. I just can't find my damned computer cord.
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Jet-Lee
Ex Member



Re: scale down - relocate drivers
Reply #3 - 11/04/05 at 00:44:34
 
whoooaaaaaaaaa!!!!!!!!!

this outdoes my WO24, that weird 6th order dual bypass, ANYTHING! for these two tens.

I didn't get pics, left 'em at home, but I'll draw a scale drawing tomorrow and post it.

C ya'll laytr!
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DirtDawg
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Re: scale down - relocate drivers
Reply #4 - 11/04/05 at 14:05:23
 
[quote author=Jet-Lee  link=1130878736/0#2 date=1131035733]I got pics of my previous boxes, and I'll take pics of this one too. I just can't find my damned computer cord. [/quote]

Get an active card reader and leave it plugged into your machine. Smiley
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Jet-Lee
Ex Member



Re: scale down - relocate drivers
Reply #5 - 11/04/05 at 15:05:38
 
I lost that too.......I need one of those computers with the card reader built in......
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gexter
Ex Member



Re: scale down - relocate drivers
Reply #6 - 11/04/05 at 16:40:49
 
I'd settle for a scale drawing so I know exactly what you tried.
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Jet-Lee
Ex Member



Re: scale down - relocate drivers
Reply #7 - 11/04/05 at 18:00:05
 
size as scanned:



it is loaded with 2 of these:



Don't forget, this is in a 1999 Ford Escort.

EDIT - the entire box is 13.5" tall, excluding the top and bottom it leaves the rest of the pieces being 12".
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« Last Edit: 11/28/05 at 18:55:10 by Jet-Lee »  
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Circlomanen
Ex Member



Re: scale down - relocate drivers
Reply #8 - 11/06/05 at 12:47:33
 
It seems like you are closing in on Tom Danleys design.
see www.danleysoundlabs.com for more info.
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DirtDawg
Ex Member



Re: scale down - relocate drivers
Reply #9 - 11/06/05 at 13:45:46
 

Danley seems like good stuff.

I have heard this cab and it is hard to believe. A band with 8 vocalists used an 18" sub of some kind and a pipe attached to it with this cab way up high in a church on each side. I expected to hear nasal-toned, raspy, muddy, middy sound with no Hi's and too much bass. I was wrong! This design is clean and so powerful, it needs an 18" sub to keep up. I was very impressed.
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gexter
Ex Member



Re: scale down - relocate drivers
Reply #10 - 11/06/05 at 16:12:15
 
Looks great ! and just as I thought it would look like, so your explanation was a good one.
I don't recall seeing that done in these forums before.
I gather that the SPL was good. What is the SQ and how flat and low?

thanks for the pic
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Jet-Lee
Ex Member



Re: scale down - relocate drivers
Reply #11 - 11/07/05 at 13:42:10
 
I decided this was the box I wanted to keep in the car, so I took it apart and sealed it all up. WOW! It sounds 3 times better! The SPL is unbelievable. The SQ is better than my WO24, worse than my weird 6th order, but overall very definitive. It sounds/feels pretty flat from 90hz down to about 38, then a slight dropoff to 30, then steeper to 28. I didn't go below 28 as that's the limit of my subs and I don't want to risk too much damage.

I'm VERY satisfied with this setup. Have already started sizing one for my buddy, as my two 5y/o 10's now out perform his Rockford Fosgate 12's.
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Jet-Lee
Ex Member



Re: scale down - relocate drivers *PICTURE*
Reply #12 - 11/10/05 at 23:20:33
 
I managed to snag this pic of it.

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« Last Edit: 11/28/05 at 18:54:55 by Jet-Lee »  
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Circlomanen
Ex Member



Re: scale down - relocate drivers *PICTURE*
Reply #13 - 11/11/05 at 15:45:33
 
A very intresting design!
Nice picture!
Im thinking about building something similar... Or maybe just cut two holes in my WO and remount the drivers in the new ones.
Its very fun when someone tries something different.

Cheers, Johannes.
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60ndown
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Re: scale down - relocate drivers *PICTURE*
Reply #14 - 11/11/05 at 16:15:49
 
[quote author=Jet-Lee  link=1130878736/0#12 date=1131664833]I managed to snag this pic of it.

[/quote]


the potential problem i understand with this desighn and others like it, is that the front and rear waves are not (or might not be) in phase? and they may be differently out of phase at different frequencies?
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