Max_Andrews
05-29-2007, 06:25 PM
http://www.3dfightclub.com/~madmax/uploads/Photo%20222.jpg
Got all the panels cut for my peerless 8" nomex / seas tdfc two way this week, getting started gluing (that's a lot of gluing!!!!)
Panels took two full work days to cut, which is why I can't offer to do these for larger projects. This took five sheets of 1/4" masonite, which collectively weighed about one hundred million tons (at least that's what it feels like going up the stairs). The crossovers are 4th order gaussian filters, which are assymetrical and supposedly offer the lowest group delay of all typical XO types. The XO point is 1530Hz, allowable since the 8" nomex has surprisingly good off axis extension until about 1900hz, and the tdfc is robust enough to take the low0ish XO point. I'll see how they sound soon, still waiting on a few parts for the tweeter XO. Box volume is 2.1 cf, good for an F3 of 34.4Hz and an F10 of 28Hz, which means that these can easily be enjoyed without a sub.
Main photo on this page is a test fit of the port, woofer, and tweet on one of the front baffles. (sorry about the bad pics, i had to take them with my computer as my digital camera is at home)
Here's a loose wiring of the gaussian woofer networks: <A HREF="http://www.3dfightclub.com/~madmax/uploads/Photo">http://www.3dfightclub.com/~madmax/uploads/Photo</A>%20233.jpg
Close-up-ish shot of a front baffle sans drivers, you can see the pre-cut screw pilot holes and the counter-sinking: <A HREF="http://www.3dfightclub.com/~madmax/uploads/Photo">http://www.3dfightclub.com/~madmax/uploads/Photo</A>%20239.jpg
And one more even closer on the front baffle, you can also see the rear baffle with bolts in place in the background also getting a test fit: <A HREF="http://www.3dfightclub.com/~madmax/uploads/Photo">http://www.3dfightclub.com/~madmax/uploads/Photo</A>%20240.jpg
More updates in a few days, when they should be hopefully close to completion.
Got all the panels cut for my peerless 8" nomex / seas tdfc two way this week, getting started gluing (that's a lot of gluing!!!!)
Panels took two full work days to cut, which is why I can't offer to do these for larger projects. This took five sheets of 1/4" masonite, which collectively weighed about one hundred million tons (at least that's what it feels like going up the stairs). The crossovers are 4th order gaussian filters, which are assymetrical and supposedly offer the lowest group delay of all typical XO types. The XO point is 1530Hz, allowable since the 8" nomex has surprisingly good off axis extension until about 1900hz, and the tdfc is robust enough to take the low0ish XO point. I'll see how they sound soon, still waiting on a few parts for the tweeter XO. Box volume is 2.1 cf, good for an F3 of 34.4Hz and an F10 of 28Hz, which means that these can easily be enjoyed without a sub.
Main photo on this page is a test fit of the port, woofer, and tweet on one of the front baffles. (sorry about the bad pics, i had to take them with my computer as my digital camera is at home)
Here's a loose wiring of the gaussian woofer networks: <A HREF="http://www.3dfightclub.com/~madmax/uploads/Photo">http://www.3dfightclub.com/~madmax/uploads/Photo</A>%20233.jpg
Close-up-ish shot of a front baffle sans drivers, you can see the pre-cut screw pilot holes and the counter-sinking: <A HREF="http://www.3dfightclub.com/~madmax/uploads/Photo">http://www.3dfightclub.com/~madmax/uploads/Photo</A>%20239.jpg
And one more even closer on the front baffle, you can also see the rear baffle with bolts in place in the background also getting a test fit: <A HREF="http://www.3dfightclub.com/~madmax/uploads/Photo">http://www.3dfightclub.com/~madmax/uploads/Photo</A>%20240.jpg
More updates in a few days, when they should be hopefully close to completion.