Wayne Parham Messages: 19045 Registered: January 2001
Illuminati (33rd Degree)
Is there any way you can attach a thinner front to your 18mm baffle? Maybe a small 9mm thick panel? If you do that, you can essentially build the cabinet with exact dimensions shown in the designs, and simply glue an extra 9mm panel in front. That will also allow you to route the midwoofer and waveguide/horn mounting surfaces to provide flush mounting. It's extra work, but it's attractive and it's not too hard - watch some videos showing the process.
Also, be careful that the port duct is 25.4cm from the front edge of the baffle to the edge on the inside of the box. The total path length is 25.4cm.