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--- university:courses:electronics:electronics-lab-speaker [05 Apr 2023 18:42] – [Loudspeaker Impedance Model] Doug Mercer
+++ university:courses:electronics:electronics-lab-speaker [05 Apr 2023 18:43] (current) – [Background:] Doug Mercer
@@ Line 16: / Line 16: @@
 Knowing the resonate frequency and the minimum and maximum impedances are important when designing cross over filter networks for multiple driver speakers and the physical enclosure the speakers are mounted in.
+Dynamic loudspeakers are abysmally inefficient electro-mechanical conversion devices, as [[wp>Loudspeaker|Wikipedia]] substantiates: “Loudspeaker efficiency is defined as the sound power output divided by the electrical power input. Most loudspeakers are inefficient transducers; only about 1% of the electrical energy sent by an amplifier to a typical home loudspeaker is converted to acoustic energy.”  Yes, 1% is an abysmal efficiency as we try to “be more green”, but so far it is the best we have that sounds good (and each dynamic transducer only sounds good over a limited frequency range).
 ==== Loudspeaker Impedance Model ====

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