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Parallel Circuit - A circuit configuration in which the same voltage is applied to all components, with current divided among the components according to their respective resistances or impedances. Example: All positive leads of two or more speakers connected together and a
Parametric - A type of equalizer with adjustable parameters such as center frequency and bandwidth (Q) as well as amplitude.
Phase - The relative position of two sound waves with respect to each other.
Piezo Electric Tweeter - A very efficient, highly directional tweeter, which operates without a crossover or magnet. Driver creates sound when a quartz crystal receives electrical energy.
Pink Noise - Sound with all frequencies perceptible to the human ear reduced to an equal energy level.
Pink Noise Generator - A device used to generate pink noise that usually includes a calibrated microphone.
Polarity - The electrical quality of having two opposite poles, one positive and one negative. Polarity determines the direction in which a current tends to flow.
Pole Mount - A common automotive speaker design with the high frequency driver mounted on a center pole. Newer designs mount the high frequency driver in the same location above the lower frequency driver with a bridge. This prevents problems such as dust and dirt fro
Power Handling Capability - The maximum amount of power that can be safely accommodated without damage in a speaker system. This will vary depending on frequency and length of time the signal is applied.
Pre-amplifier (pre-amp) - The circuit that takes a small signal and amplifies it to be fed into the power amplifier for further amplification. Contains controls for volume, regulating tone, and channel balance.
Pre-amp Fader - A circuit that allows effective level control of two amplifiers, built in and external without loss of power.