How loud is too loud? Apparently NOT 120 decibels, according to Todd Whitworth, who has a large barn full of classic cars and a stereo system that pushes out more that 6,000 watts. Whitworth uses ...

A pair of speakers with a 90 decibel sensitivity rating with a 50-watt amplifier will perform the same as a pair of 87 decibel rated speakers with a 100-watt amplifier.

A receiver with 50 watts per channel should be adequate for small to medium-sized rooms or speakers above 90 decibels sensitivity. If you have a large room or speakers below 87 decibels ...