I had wired at my box a Siemens 100 k volt surge protector
that blocks even small spikes at your breaker box and has led monitoring if a indirect or lightening strike happened .i have owned 2 now in seperate homes well worth the effort $300 including installation bought on Amazon with a substantial warranty.
for wall units the black ice surge protector,conditioner Ask for Audiophile version 8 outlet around $300
and was a rated class B item against 2 units $1500, they work well
i used them on a 2 systems for several years before installing theSiemens at the breaker box.
that blocks even small spikes at your breaker box and has led monitoring if a indirect or lightening strike happened .i have owned 2 now in seperate homes well worth the effort $300 including installation bought on Amazon with a substantial warranty.
for wall units the black ice surge protector,conditioner Ask for Audiophile version 8 outlet around $300
and was a rated class B item against 2 units $1500, they work well
i used them on a 2 systems for several years before installing theSiemens at the breaker box.