| http://www.w3.org/ns/prov#value | - .Amplifier is a device that changes the amplitude of a signal.Headset has a controller for increasing and decreasing the volume while an amplifier has characteristics like bandwidth, gain, efficiency, linearity, noise, output dynamic range, slew rate, rise time, stability, settling time and ringing.Used in offices, business organizations, network operation/command centers, and entertainment venues
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