Quality of Power

[David A]

Ambient noise is background noise unrelated to your electricity supply. I'm retired and I live in a house in a suburb of my state's capital city. I listen during the day and I listen at night and yes, the ambient noise levels are different but the differ at several times of day. From around 7.00 pm to 7.30 am the next morning, ambient noise is low apart from the morning chorus of birds; there's little traffic and it's a quiet neighbourhood. Between some time after 3.00 pm and 7.00 pm, and again between about 7.30 am and 9.00 am there's traffic noise with people going to and coming home from work plus kids playing in the park a few doors down the road. Between 9.00 am and 3.00 pm it's fairly quiet again unless there's building work or something similar going on or people doing things like mowing lawns. The ambient noise pattern can be different in other areas but there's always a pattern to it and it's a pattern which changes slowly over time. If we're going to talk about differences in hearing detail because of changes in ambient noise, we're talking about changes with a couple of hours or more between one situation and the situation you're making a comparison to. Ambient noise is not a factor if people are talking about a difference that occurs between before and after they make a change in their system and the change only takes a couple of minutes to make at most. There is rarely a drastic change in ambient noise levels within a couple of minutes.

Add to that the fact that whatever power conditioners or power cables do, the one thing they definitely do not do is to change the level of ambient noise. If you say you hear a change when you're talking about the effect of a power conditioner or power cable on your system, you're most definitely not talking about a change that is due to changes in the ambient noise level.