Although those living in an urban high-rise might be worse off than what I have to deal with as far as AC power is concerned, the juice supplied to my home is pretty bad. I’m one mile outside of a major metropolitan area and in a very populous suburb. There are many broadcast towers, some closer than a half mile away, one being used by a 50,000-watt FM station. Overhead lines on telephone poles carry cable TV, electrical power, telephone, and who knows what else. Retail, industry, and large apartment complexes are close by, and the subway station is blocks away. During the day, and especially during the summer months, it seems like my system’s sound is degraded to the fidelity of a portable AM radio. At night things get better, but only after 9:00 PM does the system reach what I used to think was its full potential.