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Zilch's AK Design Collaborative - Econowave Speaker

Sir.Byrd said:
I'm thinking that a 8' 4" line array of woofers and a centered E'Wave would at least sound interesting... if not good.
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Zilch said:
http://audiokarma.org/forums/showthread.php?p=2274539#post2274539
Click to expand...

Those are only 6.5' tall. :D Actually, "that". There's only the one and I kind of abandoned it. The low end was going to need some tayloring and I didn't feel like messing with it. And also you have to be >20' away for them to "come together" well and I don't have a room, other than the barn, where I could do that. The EWG modules are now slated for mating with some honkin BLH's that came from Powerman. :thmbsp:
 
"I haven't run the numbers, but it seems like some of the other dual-woof designs we're discussing here will go in the tall PE pre-built cabs, too.... "

That is what I started thinking after I posted.....Im sure there is a JBL driver, or other, that would work. BUt yes for under 100 bucks I couldn't do any better....with the right driver. I would not want to do the MTM thing. I like the TWW better. I have a couple pieces of 3/4" curley mable that would make nice out side mounted baffle boards that would look great on high gloss black cabs.

However, maybe PE would make these up without the cut outs for the MTM, I'll call them.
 
I picked up a set of Barzilay cabinets and am thinking of E-waving them.

Would you guys mount the waveguide above the cabinet or inside? Will the grills on these cause problems?

I'm also considering using the 12" woofers out of my Klipsch KP-250s (Industrial Heresy) but hate to take apart nice speakers. I do believe the woofers would work better in the bigger cabs though.
 

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rage said:
I picked up a set of Barzilay cabinets and am thinking of E-waving them.

Would you guys mount the waveguide above the cabinet or inside? Will the grills on these cause problems?

I'm also considering using the 12" woofers out of my Klipsch KP-250s (Industrial Heresy) but hate to take apart nice speakers. I do believe the woofers would work better in the bigger cabs though.
Click to expand...
I used the same cabinets with mine. I suggest you ditch the grills, look here.
 
Hay guys
First does the search on this forum work? No mater what I ask it to find it says "sorry".
My memory is shot. I just found that the JBL 123's I thought I had are 128H's. I think they will still work in the closed box I'm making but I thought I would ask. I would normally just search for the 128H but I'm having no luck finding it here. Im building the standard crossovers but now I'm thinking I may need to tweak them. Any help. Thanks Borus
 
The search function on this forum is among the worst I've ever used. Try finding any common three letter string of words such as is common with speaker names, and it'll draw a blank. Even with many 4 character strings.

Hence, I guess reposting the same question over and over again isn't a bad thing around here. :D

You can goto Yahoo advanced search and type in the URL of this website and it'll search the site for anything you enter in. But that method does not always find everything, in my experience. It's terrible for searching audioheritage also. But their search function at least works much better than the one here.
 
AK's forum search has been dysfunctional for several months now. A Google search option is provided for the site, but if there's a way to make it forum-specific, someone has to show us how, 'cause it returns global hits, limiting its utility.

128H is not a closed-box driver like 123A is, and you'll have to model it a box design program to find an optimum alignment for any particular project, a vented one, very likely.... :yes:
 
I've read through most of this thread and am starting to plan my next speaker project. It will be an Econowave (already have the D220 drivers) and will probably use 12" Pioneer HPM100 woofers.

I don't want to use the original speaker boxes as they are immaculate and I'll store them away. Also, I like the sound of sealed box speakers and want to use plywood I already have to build some speakers to suit the style of our 1920 arts and craft house, my wife has already said she likes the look of some of the Barzilay style speaker cabinets in this thread.

In another thread (on the LH site) Zilch said that he thought 3 cubic feet was a safe maximum size for the JBL 123A driver in a sealed enclosure. Because the HPM100 driver was purposely designed to be similar to the 123A I would like to know if it is a reasonable assumption that a 3 cubic foot box would also be suitable for the HPM100 driver?

The 3 cubic foot enclosure on the LH site thread is very much the look I'm thinking of for my project.
 
ArtD said:
In another thread (on the LH site) Zilch said that he thought 3 cubic feet was a safe maximum size for the JBL 123A driver in a sealed enclosure. Because the HPM100 driver was purposely designed to be similar to the 123A I would like to know if it is a reasonable assumption that a 3 cubic foot box would also be suitable for the HPM100 driver?
Click to expand...
Dave Newman (dnewma04) measured and posted the T/S parameters for that driver earlier in this thread. Put those into a box modeling program and see how it behaves.

Best answer is to build a test box and listen to it, of course.... :thmbsp:
 
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Hi Duffinator, yes I think it was the C36 cabinet.

Thanks Zilch. I was being lazy, I'll do a search for the parameters and then look for a Mac friendly modeling program, it's all a learning experience. I'd use the 123A but they are quite rare and expensive down here in the South Pacific.
 
rage said:
I picked up a set of Barzilay cabinets and am thinking of E-waving them.

Would you guys mount the waveguide above the cabinet or inside? Will the grills on these cause problems?

I'm also considering using the 12" woofers out of my Klipsch KP-250s (Industrial Heresy) but hate to take apart nice speakers. I do believe the woofers would work better in the bigger cabs though.
Click to expand...

My one recommendation is to get the waveguide and woofer as close as possible. It really does make an audible difference.
 
Thanks again Zilch, I was a bit confused by the C36 plans as they're labeled C35, C37, C38 and C39 but I had also saved the dimensions you posted of your plans in the thread and will go off those.
 
kevinp said:
Hi Martin,

Yes, I admit even though I'm 40 I'm not a big fan of the old school wide baffle/large woofer look. Multi woofers on a narrow baffle is more my style, and there is no denying the coolness of two woofers straddling a waveguide :)
Click to expand...

Thinner baffles may look sleek, but some of these wider baffle jobs like old JBLs, did this for a reason, baffle step response. This may be problematic, or at least require pushing them closer to the rear wall. or the crossover modded slightly to make up for it.

Russellc
 
Regarding the borked search function

I dunno why the search function is messed up. I'm a mainframe guy so out of arrogance I have to just expect it to be unreliable. The next time I see Grumpy I'll pester him about that first.

You can get Google to give you search results for a particular thread and text search argument string. You have to include the entire URL of the thread as the first search argument string.

FE: If I want to find everywhere I blather on in this thread about Kef B110s, I search Google for:

"http://www.audiokarma.org/forums/showthread.php?t=150939" kef b110

Omit the quotes. I had to include them to keep the forum posting software from automatically turning that string into a hypertext link.

Like this

Then click on 'more results from' below the first one.

Note that the URL for this thread will appear differently in your browser's address line if you arrived here logged in, from an email notification or indirectly. You have to use the URL as shown in BOLD above or it won't work.
 
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rage said:
I picked up a set of Barzilay cabinets and am thinking of E-waving them.

Would you guys mount the waveguide above the cabinet or inside? Will the grills on these cause problems?

I'm also considering using the 12" woofers out of my Klipsch KP-250s (Industrial Heresy) but hate to take apart nice speakers. I do believe the woofers would work better in the bigger cabs though.
Click to expand...

Nice looking cabinets. What is the volume on those? I have a set of Barzilay's that look like yours and Duffinators but mine measure about 3.7 cu. ft. Duff's are 5 cu. ft. I have a pair of LE14A's with fresh surrounds and the B&C drivers ready to go. I just have to cut new baffles. I'll make grill covers similar to Duff's and get rid of that lattice thing.

I'll mount the waveguide in the cabinet and very close to the woofer. Pictures to follow sson.
 
I believe the volume is about 6 cu ft. I need to double check my measurements.

I've got EPI 10" woofers and JBL waveguides + Selenium 220 that I am considering installing. Don't know how well the EPIs will like 6 cu ft sealed, but going to give it a shot.

Also considering going to the 10" Dayton classic, or maybe something else.

Decisions decisions!

Attachment shows after some TLC with Howards restore a finish.
 

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rage said:
I believe the volume is about 6 cu ft. I need to double check my measurements.

I've got EPI 10" woofers and JBL waveguides + Selenium 220 that I am considering installing. Don't know how well the EPIs will like 6 cu ft sealed, but going to give it a shot.

Also considering going to the 10" Dayton classic, or maybe something else.

Decisions decisions!

Attachment shows after some TLC with Howards restore a finish.
Click to expand...

You can always shrink the internal size via a block of styrofoam, or something else.

Russellc
 
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