I am also skeptical of all the hype about "conditioning" the AC power. Maybe I am just lucky to live in a rural area, and have audio equipment with good power supplies, but I have been unable to hear any degradation as a result of noise on the ac power. I have cell phones, cordless phones, fluorescent lights, dimmers, and even a device designed to repel mice by deliberately putting HF on the power line, and nothing seems to affect the audio system. Or the TV for that matter.
A surge arrester is quite a different matter. During thunder storms we do get spikes, and I have had unprotected electronic equipment damaged, although the audio system was not affected. By the way, turning things off does little good, as the voltage spike will jump right over the switch contacts. Unplug to be safe.
A surge arrester is quite a different matter. During thunder storms we do get spikes, and I have had unprotected electronic equipment damaged, although the audio system was not affected. By the way, turning things off does little good, as the voltage spike will jump right over the switch contacts. Unplug to be safe.