Originally Posted by coctostan
Without measuring both drivers from the same design axis how do you guys plan to solve any time alignment differences?
With that said, I'm all for some crossover design threads once people can take actual measurements from a single design axis. PCD seems kludgy at first, but once you get used to it, it is extremely easy. I've never done any active designs using it though so I don't know how well that part works.
Have the SEOS-12/DE250 measurement done an inch or two below the horn which is probably close enough to the center of any speaker box build for this combo.
Other then that time alignment can be calculated/estimated well enough and with active we can simply change values to get it more accurate AFTER the speaker is built.
This is not the first or last time measurements have been used without a box to mock up an XO...lets not let fussiness get in the way of experimentation.
Again, If one of the designers has the TD12M then maybe they can post measurements. If not then Bill/EricH can ship me the SEOS-12/DE250 and I will measure the box and post the measurements.
I do want to try PCD and I want to see a full build done on here. Its could be a cool open project.