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Zilch's AK Design Collaborative - Econowave Speaker

Zilch said:
There's an inherent transparency to the big horns that's hard to describe. The TOTL JBL Consumer horns have that, too, and the big TADs.

[We're talking megabucks here, tho.... :yes: ]
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Does the 2352 exhibit this? (You are the guy to ask.)
Because it's not mega-priced.
 
Zilch said:
Those are smaller than E'Wave, actually, JBL Consumer biradials, H4348. JBL plays them down to 800 Hz, as I recall. $800 a pair unobtanium.


There's an inherent transparency to the big horns that's hard to describe. The TOTL JBL Consumer horns have that, too, and the big TADs.

[We're talking megabucks here, tho.... :yes: ]
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Ouch! I guess you wouldn't use Selenium's with them. :D

But isn't the "inherent transparency" also where some of the criticism of horns comes in?
 
skywave-rider said:
Does the 2352 exhibit this? (You are the guy to ask.) Because it's not mega-priced.
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Yes. I characterize them as "Transcendent."

Duffinator said:
Ouch! I guess you wouldn't use Selenium's with them. :D

But isn't the "inherent transparency" also where some of the criticism of horns comes in?
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Yes, also. Horns sound horny, and those who give a whit have worked diligently to overcome that in these newer designs.

The universal observation among E'Wave builders is that E'Waves do NOT sound like horns; for less than $10 apiece, they beat out virtually any vintage horns in this respect, even the big Altec sectorals.... :yes:
 
Zilch said:
I ran them on the individual drivers early on, but I'm embarassed to say, never on a complete system.

Here's D220Ti on E'Waveguide w/LE14A and standard E'Wave XO. Impedance, red, phase, blue:

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Minimum impedance is 6.72 Ohms at 125 Hz.
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Thanks Zilch, I've been playing with the "Passive xover designer, excel spreedsheet" program.

I edited with notepad a ZMA file named Ideal (Basically 8 ohms) to reflect "to some degree" the
selenium 210 driver then did EQ and L-PAD to see what it looked like, very simular outcome to
your measurements I think.

Just trying to see with gathering enough info and plugging it in can this program be useful for at
least making a protoype xover, then tweaking from there with predicted results actually verified.
 

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Hey, you guys quit talking about the 2384 PT. Zilch, is this PT a scaled up version of the original WG of this project (12" W x 6.5" H, part #338800-001)? If it is close to a scaled up version and not exorbitantly more expensive, I do have access to a pair of JBL 2435 that I can try. Any idea of the cost?
 
Kegger said:
Just trying to see with gathering enough info and plugging it in can this program be useful for at least making a protoype xover, then tweaking from there with predicted results actually verified.
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The missing piece is response measurement capability. You can also measure the actual voltage drives with that. :yes:


TnT2 said:
Hey, you guys quit talking about the 2384 PT. Zilch, is this PT a scaled up version of the original WG of this project (12" W x 6.5" H, part #338800-001)? If it is close to a scaled up version and not exorbitantly more expensive, I do have access to a pair of JBL 2435 that I can try. Any idea of the cost?
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I don't know what it is, frankly, or what it costs, but will inquire.

If it were PT, I think they would have said so, but I don't see a diffraction slot in there, either, in the pics. We've really got to have them in hand to get an idea of what's up and how they perform.

I'm a little put off by the "enhanced HF for behind the screen" thing, which may imply an exponential flare and beaming.... :dunno:
 
I recently had an opportunity to get a pair of 2360 horns with 2446J compression drivers but I didn't act quickly enough and trusted they were going to be held for me until the 26th. Just as well, a 31x31" biradial horn wouldn't have gone over well with Christie.
 
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the AC2215/95 (middle) reports that it is crossed at 2.2khz while the AM6215/95 (bottom) reports 1.3khz, so not exactly apples to apples. the 2352 horn (top) seems to have a rising response, perhaps that is the "screen effect" that was built in. the AC2215/95 uses the econowave horn. the AM6215/95 uses the PT-H95HF horn, which is 1.5", a little taller, and also available (part# 338781-001 $138)
 

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Anybody have a pair of 1.5mH 18 AWG I Core Inductor's they could spare? PE is out of them and it's keeping from getting my EconoWaves done.
 
publius said:
they are in the current installed sound lineup. i cleaned up the post.
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AM6215/95 uses PT-H95HF, actually. Zilch's favorite 1.5" PT-F95HF is used in VP Series products:

http://www.jblpro.com/catalog/general/ProductFamily.aspx?FId=16&MID=2

See VP7212/95DPC, VP7215/95DPC, and VP7212MDP.

Also note that VP7210/95DP uses the 1.5" version of the 8" square PT-D95HF, with which we built BmWr75's upgraded Heath project, pre-E'Wave:

http://audiokarma.org/forums/showthread.php?t=160792
 
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Post pics of your E'Wave powered New Year's Eve swillabration!
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So hoist an EconoCocktail to Jack and Zilch, Russell and the rest.

‘Wave-on in ’09!
Cheers, guys.
:P
:beerchug::drunk:

Ps: Waiting period before posting: 12 hours to adjust to new brain cell count, allow time for judicious editing, etc..
 
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