Rerurn to Romy the Cat's Site
In the Forum: Horn-Loaded Speakers
In the Thread: RAAL “Water Drop” tweeter for Macondo.
Post Subject: Time and resistance?Posted by Paul S on: 9/14/2007
As a certified non-expert I wonder about 1st order XO with the tweeter, because of the phase issue. Probably stupid, but I always figured that at 180 degrees you could just switch the wires...
But I have not tried 1st order on a ribbon for a long time. I have tried the 3rd order that everyone recommends fairly recently, however, and it was bad in my system.
Do I remember reading somewhere on your site that you pretty much dismissed the "90 degree" issue, at least for LF?
If DCR is the main concern with 2nd order, you can get a small value coil like that made of thick wire that has pretty low R, down to .02 Ohms.
The air cap sounds interesting. I guess the ribbon would be the right place to start...
Anyway, you're making me re-think my own x-overs, especially the MF, where I am also stuck with a Zobel to counteract the notch filters.
Best,
Paul SRerurn to Romy the Cat's Site