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[14 Oct 2008|10:35am] |
- loudspeakers - similar to motor
- set motion to air equal to electric frequencies
- Hz - cycles/second
- speaker
- membrane, motor, box to house both
- Three kinds
- cone
- horn/driver
- electrostatic
- crossover network
- divide sound to different bandwidths by Hz, for amplification
- cluster
- arrays
- time alignment - offset time sound travels to prevent slapecho effect
- amplification - use of a small current to control a large current
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