How many amperes (AC mains supply) will my MB-100 home theater require?
In the case of 115VAC mains be advised that even though the MB-100s power supply can produce a 400 watt peak it would only require 400/115= 3.48A maximum mains current to do this. This is less current than some would think. Most people play the MB-100s at 80-100 watts (averaged) for normal listening. This level is quite loud and can easily deliver music peaks of 160 watts or more. To play at this normal listen level the MB-100s would draw about 200 watts (averaged) which is only 200/115= 1.74A. Therefore, it does seem that five MB-100s (8.7A total@100W) would be quite comfortable operating with a good 15A supply. Even if you double the 8.7A current (17.4A total) a single 20A breaker is more than enough. We are talking about music programs here and not MB-100s connected directly to constant resistor load. It would most likely never be the case that all the MB-100s would be drawing maximum power at any one time which actually relaxes the power requirements even more. Please note for the
