June 20, 2016

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Most types of audio amplifiers have a power supply built in. That means that the power cord is connected directly to the amplifier. All you need to do is to connect the power cord with an outlet and you will be all set. However, keep in mind that some products are designed for different voltages. That is because some countries have a 120 V power supply voltage while others work with more than 220 V.

In that case you might have to flip the switch depending on the mains voltage so that the power supply will work properly. Some power supplies are not able to tolerate the wrong voltage and thus checking the input voltage is crucial. However, some amplifiers don’t come with their power supply. Instead, they will have a power connector at the rear which requires a specific voltage.

In order to operate such …