Spectral recommends explicitly that their DMA-360 amps not be left on unattended for long periods, because of potential speaker damage during brown-outs or power outs. Check with Classe on their recommendations for their amps.
Dwpc, high quality surge protection should help, but there are no guarantees with lightening strikes.
Dwpc, high quality surge protection should help, but there are no guarantees with lightening strikes.