Dilly, try this link
http://kosat.consultit.no/~ketil/lowther/voigtpip.html
The dimensions shown in those plans are metric, and are INSIDE DIMENSIONS.
I have used the Lowther EX3 in this enclosure, and found it to be the best match, in my opinion. I also made some mods which would be important in getting the best bass response. Contact me if you are going to make these, and I'll give you the information you need to do this.
http://kosat.consultit.no/~ketil/lowther/voigtpip.html
The dimensions shown in those plans are metric, and are INSIDE DIMENSIONS.
I have used the Lowther EX3 in this enclosure, and found it to be the best match, in my opinion. I also made some mods which would be important in getting the best bass response. Contact me if you are going to make these, and I'll give you the information you need to do this.