I built this pair of speakers about 13 years ago. They still form the main part of the hifi. Drivers are 10" PA ones from Terralec along with Piezo horns and are rated at 150W continuous. They are loud (and heavy)! They weren't cheap to build, but were much better value than what was available at the time. The enclosures are made from MDF completly to my own design.
I was really proud of these when I built them, they sound pretty good, with plenty of Bass.
For years I ran these on an Amp pulled out of a skip, until the volume pot finally died.