Loudspeaker Connection
In a constant voltage speaker system, each loudspeaker's step-down transformer can be designed for a single power level or it can have multiple taps, one of which is selected to match the desired power level to be applied to the loudspeaker. Transformers with various taps allow the installer to adjust the sound pressure level up or down at an individual loudspeaker. To minimize power losses, the wires connecting the loudspeaker to the step-down transformer are kept as short as possible. Purpose-built models are available that have the transformer contained within the loudspeaker enclosure. All of the loudspeaker step-down transformer primaries are connected in parallel to the constant voltage line.
Read more about this topic: Constant Voltage Speaker System
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