Originally Posted by
Pharos
Printed cct boards are really of benefit mainly with high density of small components, and prior to the increased complexity of cct design we have today, point to point wiring was the norm, and it has some advantages.
In an audio amp the components can be placed such as to reduce connection length and distance between components, and also reduce the risk of RF parasitics.
With a mains filter, which probably has only a few components it seems to me that a cct board will have to be thick and strong, and the components may well be heavy - large high current coils for eg..
Printed cct board layers are expensive if thick copper is required for high current reasons, but high current connections with stranded wires are easy to do and cheap.
Regarding looks, I would consider the old cast alloy boxes which I have used several times and produced fairly professional finishes with.