Hi Guys,
As I can't work on my boat because of winter, I would like to share this tutorial on how to build your own tower speakers.
I already gave all those informations in my boat's post, but it will be easier to find it in the audio/video section.
So, I started to draw it on autocad (DWG here ; DXF here and PDF here) and CNC it in PVC Komacel/Forex material (20mm thickness) :