This Miller and Kreisel MX200 Subwoofer internals sent from North Carolina with the complaint of "one input pops" plus other concerns. This is part 1, In part 2, I will remove the complete circuit board and look it over very closely plus measure RMS power with the old Sencore Wattmeter.
I tested it on the bench for several hours and can not find any problems at all with this subwoofer. It works perfectly.
Schematic diagrams and Infrared images at the end.