Vanquish Vampire Power To conserve energy, and lower energy bills, the PM8-GAV senses when non-essential equipment is in standby mode, and automatically cuts power off to them. Improves picture and sound quality. The PM8-GAV"s Power Cleaning and Premium Filtration eliminate common symptoms of contaminated power (including loss of detail, pops, hisses, hums and visual artifacts) and allows your A/V equipment to perform up to its full capability.