Wayne Parham Messages: 18791 Registered: January 2001
Illuminati (33rd Degree)
I like to use a gasket underneath the crossover PCB, then bolt it down tight to the cabinet. I suppose a person could isolate the PCB, perhaps suspending it on string or encasing it in a viscous material. But fastening the crossover board with a gasket is simple and prevents the board from vibrating against anything that would cause it to buzz.