There's an updated version of the PSD-Lite program in the link below. It now includes a .NET version of Jeff Bagby's WBCD box modeling program, along with a splicing tool. It uses the same Benson model that Jeff used for WBCD, which is more accurate than other box modeling programs. It's got a totally re-written interface for the crossover design module, and I made the schematic options the same as what Jeff used in PCD, so it should be a bit more familiar to PCD users. It also imports CSP files so you can test it with existing PCD designs. And as with the previous version, you can model the bass boost circuit in plate amps and design Linkwitz Transform circuits.
It's got a lot of other changes--more Help files and ability to change colors as well as customize the charts. As in the previous Beta version, most of the values can be entered by scrolling with the mousewheel, so data entry can be very fast. With the box modeling tool, the program should be more fun to use.
There is a Response editor for modifying the FRD data that lets you view and change individual values and extract phase using an FFT-based algorithm. There are a couple of additional features still not implemented in the Response editor, but those will eventually get finished.
As before, it saves and loads the program state using an XML schema that is described in one of the help files. So it is a completely "open" format that can be used to exchange data with other loudspeaker design tools.
This program is a spin-off of a larger program (PSD), and it hasn't been tested much, so I apologize if anyone wastes time tripping over bugs and gets confused by things that aren't logically organized.
I'd appreciate any feedback that will help make this program more useful.
PSD-Lite
It's got a lot of other changes--more Help files and ability to change colors as well as customize the charts. As in the previous Beta version, most of the values can be entered by scrolling with the mousewheel, so data entry can be very fast. With the box modeling tool, the program should be more fun to use.
There is a Response editor for modifying the FRD data that lets you view and change individual values and extract phase using an FFT-based algorithm. There are a couple of additional features still not implemented in the Response editor, but those will eventually get finished.
As before, it saves and loads the program state using an XML schema that is described in one of the help files. So it is a completely "open" format that can be used to exchange data with other loudspeaker design tools.
This program is a spin-off of a larger program (PSD), and it hasn't been tested much, so I apologize if anyone wastes time tripping over bugs and gets confused by things that aren't logically organized.
I'd appreciate any feedback that will help make this program more useful.

PSD-Lite