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Old 25th January 2010, 09:08 PM   #121
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Well, you guys should settle on a reference design like Earl did. The EconoWave designs floating around in DIY space can't be compared to anything if there's no real comparable data.
In the end we will probably rant about HOMs but first we should be able to discuss basic properties of the systems.
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Old 25th January 2010, 09:18 PM   #122
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I would be willing to build a EconoWave box and measure it along with the Nathans but my reflection free measurement "bubble" is only 1.20–1.40m. That's probably too close.
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Old 25th January 2010, 09:33 PM   #123
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Quote:
Originally Posted by markus76 View Post
Well, you guys should settle on a reference design like Earl did.
We're about DIY, not selling a product. I do offer PC boards for $20 a pair, but they're optional, as we have posted the schematics and crossover layout for everyone's use. There are over 80 registered builders with completed projects posted on AudioKarma to date.

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Originally Posted by markus76 View Post
I would be willing to build a EconoWave box and measure it along with the Nathans but my reflection free measurement "bubble" is only 1.20–1.40m. That's probably too close.
We are working toward that goal, and I have recently posted a design based upon the Dayton KD trapezoidal enclosure kit ($64 ea. with free US shipping on two at Parts Express). The whole deal comes in under $400 a pair using inexpensive Dayton DC300-8 woofers. Get together with Skywave across the river from you; he's one of the "Collaborators...."

Last edited by ZilchLab; 25th January 2010 at 09:47 PM.
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Old 25th January 2010, 10:00 PM   #124
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Quote:
Originally Posted by ZilchLab View Post
We're about DIY, not selling a product. I do offer PC boards for $20 a pair, but they're optional, as we have posted the schematics and crossover layout for everyone's use. There are over 80 registered builders with completed projects posted on AudioKarma to date.
Well that's nice but doesn't make those designs better or comparable to others.

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We are working toward that goal
Let me know when you're finished. I would like to see a more substantiated discussion.
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Old 26th January 2010, 12:14 AM   #125
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Originally Posted by markus76 View Post
Well that's nice but doesn't make those designs better or comparable to others.
That'd be your job, to ascertain....
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Old 26th January 2010, 12:27 AM   #126
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Sure but first there needs to be something more real than 80 different designs
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Old 26th January 2010, 03:03 AM   #127
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Build this with DE250 and Eminence Kappalite drivers. The QSC waveguides have gone up to $12.50 each, alas....

Click the image to open in full size.

Here's a more refined version, with B&C woofer:

Click the image to open in full size.

Or Brandon's slick No Quarters:

Click the image to open in full size.
Attached Images
File Type: jpg QSC446 & DC300 in Cab.jpg (54.1 KB, 337 views)
File Type: jpg JackLab 1a.jpg (62.1 KB, 318 views)
File Type: jpg No Quarter.jpg (40.8 KB, 167 views)

Last edited by ZilchLab; 26th January 2010 at 03:24 AM.
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Old 26th January 2010, 03:26 AM   #128
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More data (less wank)?
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Old 26th January 2010, 03:29 AM   #129
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Exactly, and less blather, too.

Do it.

[QUICK, before they raise the price of waveguides to $15...! ]

Last edited by ZilchLab; 26th January 2010 at 03:41 AM.
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Old 26th January 2010, 03:44 AM   #130
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You're missing the point - where's the data? Just because I can build a speaker doesn't mean I should. Building something just because it's cheap is uhm cheap.
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