This gives you an idea what the internal construction looks like. This was taken during testing and before I finished putting in the back mounting blocks.
He gave the me drivers and let me run a muck. The base design is the 620 cabinet. I modified to take into account I wanted to recess the front baffle and use dual front ports like found in a different Altec design. That and I wanted a totally different internal bracing design.
I am so stuck trying to decide between the 620 and 606 design for my 604's. I know the 620's would be easier, the 606's would fit my room and purpose better. Arrgh, one of these days
But, yeah, I know it. When wardsweb and I were corresponding, initially, about the design of the cabs, he told me that he'd found an admiring 2- or 3-year-old comment I made in someone else's thread on a 604 project. That gave him some ideas about the direction of the design. He doesn't only have woodworking skills, man, he has mind-reading skills.