These are a set of Tractrix horns from a Klipsch 5.5 that I bought on eBay fairly cheap. They’re pretty rough, but work for me as I needed to cut them down to match up with some ZXPC 18x10 horns. I’m still working on cleaning them up and painting them.
1. 125” aluminum, cut out using a 4” keyhole saw.
2. Center bore cut out with a 1” hole saw.
3.using an old k85 diaphragm as a template fitted into the 1 hole , I drilled three holes and tapped to 8/32”.
4. Drilled two holes 3” apart through the center for the DE10.
5. Using a nibbles, removed the plastic dome in the Tractrix horn. Cleaned it up with a dremil and some 80/120 grit sandpaper.
6. Using a cut down Allen wrench, I fastened the mounting plate to the Tractrix horn using 8/32 x 1/4” stainless button heads from the backside of the Tractrix through the threaded holes on the mounting plate.
7. The DE10 bolts on using 10/32 x 1/2 inch stainless socket heads.
1. 125” aluminum, cut out using a 4” keyhole saw.
2. Center bore cut out with a 1” hole saw.
3.using an old k85 diaphragm as a template fitted into the 1 hole , I drilled three holes and tapped to 8/32”.
4. Drilled two holes 3” apart through the center for the DE10.
5. Using a nibbles, removed the plastic dome in the Tractrix horn. Cleaned it up with a dremil and some 80/120 grit sandpaper.
6. Using a cut down Allen wrench, I fastened the mounting plate to the Tractrix horn using 8/32 x 1/4” stainless button heads from the backside of the Tractrix through the threaded holes on the mounting plate.
7. The DE10 bolts on using 10/32 x 1/2 inch stainless socket heads.
There are some ways you can cheat pulling this off. I built this purely on backyard craftsmanship with common and cheap tools. Attention to detail and patience always guarantees success. Look at it as as a series of steps and focus on those steps to get the end result. When in doubt, step back away, think, drink some coffee and then tackle the next step.
I tried to be as exact as possible, but you could nail it by simply eyeballing it.
I used a precision cut 1 inch hole saw. A Milwaukee 15/16” hole saw will work well enough following up with some course sandpaper wrapped up in a circle to clean up the hole. Ace hardware.
If you don’t want to sacrifice a tweeter diaphragm and going through the trouble drilling and tapping to make a template, you could cut out the 1” hole, eyeball it and bond it to the horn with JB Weld.
It’s not too important that the spacing for the DE10 is exact. You just want the driver centered in the hole. You can oversize the holes to get the 2 bolt drivers to fit center.
I tried to be as exact as possible, but you could nail it by simply eyeballing it.
I used a precision cut 1 inch hole saw. A Milwaukee 15/16” hole saw will work well enough following up with some course sandpaper wrapped up in a circle to clean up the hole. Ace hardware.
If you don’t want to sacrifice a tweeter diaphragm and going through the trouble drilling and tapping to make a template, you could cut out the 1” hole, eyeball it and bond it to the horn with JB Weld.
It’s not too important that the spacing for the DE10 is exact. You just want the driver centered in the hole. You can oversize the holes to get the 2 bolt drivers to fit center.
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