Just cut the power to the building. Amplifier won't work. Electricity worker should know the route of the main feed.
(Here in Greece, the meter box with switch is always outside. Smash the switch and we have to wait a day or more for the electricity company to replace it.)
Just cut the power to the building. Amplifier won't work. Electricity worker should know the route of the main feed.
(Here in Greece, the meter box with switch is always outside. Smash the switch and we have to wait a day or more for the electricity company to replace it.)