Here's a resource discussing DIY Walsh designs:
http://www.diyaudio.com/forums/showthread/t-14337.html
I've read some things on the web published by ebay member Mamboni as well that seems to provide practical guidelines for constructing a DIY Walsh speaker.
http://www.diyaudio.com/forums/showthread/t-14337.html
I've read some things on the web published by ebay member Mamboni as well that seems to provide practical guidelines for constructing a DIY Walsh speaker.