DESIGNED AND ASSEMBLED IN SUNNY SOUTHERN CALIFORNIA
Surge Protectors; What are they? Do I need one?
Surge Protectors provide some insurance against a high transient voltage on the AC supply from getting into and damaging the amplifier. This protection is not 100%. A direct or nearby lightning strike can overwhelm even the best protector. However they do offer some protection for not very much money.
Their choice for best surge protector is the Tripp Lite TLP1008TEL This unit will quit passing power when the protection wears out. They make the argument that this prevents a false sense of security. For systems that must always operate, like professional sound reinforcement, you would want to choose one that does not have this feature. Many professionals use a series mode protector like one of the Surgex products.
If you live where there is very stable power and no lightning storms, you may not need surge protection.