GregS wrote:

A standard Tripplite surpressor has all the basic things that should
be there. The big RF coils also slow down the spikes so the MOV's
work better. There is outlet to oulet decoupling, so it does things
that a central surge protector doesn't.

Those "big RF coils" also have the effect of increasing the source
impedance of your power line as seen by the connected equipment. This is
a bad thing, particularly with switching supplies. In order to really
filter the incoming power on a 60 Hz line, you need HUGE inductors or
transformers. Think tens of pounds of iron and copper.