Power Connection; Power Supply - myaudioart MA3 Manual De Instrucciones

Power connection

If the mains cable was not connected before mounting the system, you need to
connect it to the power supply before the system can be switched on. Only use the
provided mains cable and do not lengthen it.
As an alternative to standard power supply with the included mains cable, you can
power the system using a suitable 12 V DC battery via the 2.5 mm barrel connector.

Power supply

– Insert the IEC plug of the mains cable into the 220V AC input (see page 41)
– Connect the safety plug to the power socket.
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User Manual