Wayne Parham Messages: 18786 Registered: January 2001
Illuminati (33rd Degree)
I like to use 10-32 T-Nuts or threaded inserts. Double the baffle in the area where the mounting screws are. I like to cut a ring of baffle material and glue it on the back of the baffle, which tends to compensate for the material removed when routing for flush mounting.
The crossover circuit board can be mounted anywhere, but I like to mount it to the bottom. Make gaskets from cardboard or 0.040" PVC sheet material, which is available at most hardware stores. Put a gasket under the crossover and the Zobel resistor, and also behind the waveguide and midwoofer. See the link below for an example: