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Home Theater - Science of Sound -
Speaker Sensitivity , Decibels, Speaker Systems
|Determine the amplifier requirement in watts to produce the desired loudness in decibels (dB)||What is the maximum output in decibels (dB) of your speakers based on their sensitivity and power rating?||Determine amplifier requirements to produce desired volume with multiple speakers and variable distance|
|Determine amplifier requirements to produce desired volume with multiple speakers, variable distance, and placement||Will the new widescreen TV fit? Check out this screenwidth calculator...|
Perceptions of Increases in Decibel Level
Decibel: The decibel (abbreviated dB) is the unit used to measure the intensity of a sound.
* Near total silence - 0 dB
Imperceptible Change - 1dB
[Any sound above 85 dB can cause hearing loss, and the loss is related both to the power of the sound as well as the length of exposure.]
dB SPL laws
Impact of the various changes on sound levels
-----Placement of Speakers--------------