In the context of a PA system a power amplifier converts a low-voltage, high-impedance waveform such as a line level signal from a mixing console into a high-voltage, low-impedance waveform which is suitable for reproduction by a loudspeaker. External power amplifiers are an integral part of any PA system which utilises passive speakers.
To attain the best possible sound quality it is necessary to match an amplifier in terms of the wattage and ohmage to the speakers it is required to power. As such when hiring a PA system your audio visual hire supplier will recommend a suitable amplifier and speaker combination to cater for your requirements.
Is the amplifier matched in terms of wattage and ohmage with the speakers it is powering? Using inappropriately matched equipment can lead to both speaker and amplifier damage
Is the system powerful enough to cater for the size of audience and intended use? If a PA system is not sufficiently sized it may be over driven leading to potential speaker and amplifier damage
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Other audio visual hire options that you may wish to consider include: | |||
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